Segment Routing
Getting started with Segment Routing or SPRING or Source Packet Routing
In this article, let’s replace LDP with SPRING to establish a full mesh of LSPs in a sample network with 8 routers (R1 through R8). R1 and R8 are the PE routers with a L3VPN configured on both.
IS-IS is the IGP protocol in use and Segment Routing extensions are enabled for IS-IS.
Only IPv4 is running, so IPv4 Node SID (node-segment IP4 index) is assigned.
R1 has a node-segment ID of 41, R2 has 42, and so on.
On all routers SRGB is configured with the same start-label value of 100000 and index-range of 1000.
Configuration
pradeep@R1> show configuration protocols isis source-packet-routing
srgb start-label 100000 index-range 1000;
node-segment ipv4-index 41;
pradeep@R1>
pradeep@R2> show configuration protocols isis source-packet-routing
srgb start-label 100000 index-range 1000;
node-segment ipv4-index 42;
pradeep@R2>
pradeep@R3> show configuration protocols isis source-packet-routing
srgb start-label 100000 index-range 1000;
node-segment ipv4-index 43;
pradeep@R3>
pradeep@R4> show configuration protocols isis source-packet-routing
srgb start-label 100000 index-range 1000;
node-segment ipv4-index 44;
pradeep@R4>
pradeep@R5> show configuration protocols isis source-packet-routing
srgb start-label 100000 index-range 1000;
node-segment ipv4-index 45;
pradeep@R5>
pradeep@R6> show configuration protocols isis source-packet-routing
srgb start-label 100000 index-range 1000;
node-segment ipv4-index 46;
pradeep@R6>
pradeep@R7> show configuration protocols isis source-packet-routing
srgb start-label 100000 index-range 1000;
node-segment ipv4-index 47;
pradeep@R7>
pradeep@R8> show configuration protocols isis source-packet-routing
srgb start-label 100000 index-range 1000;
node-segment ipv4-index 48;
pradeep@R8>
Verification
pradeep@R1> show isis overview
Instance: master
Router ID: 192.168.1.1
Hostname: R1
Sysid: 1921.6800.1001
Areaid: 49.0001
Adjacency holddown: enabled
Maximum Areas: 3
LSP life time: 1200
Attached bit evaluation: enabled
SPF delay: 200 msec, SPF holddown: 5000 msec, SPF rapid runs: 3
IPv4 is enabled, IPv6 is enabled, SPRING based MPLS is enabled
Traffic engineering: enabled
Traffic engineering v6: disabled
Restart: Disabled
Helper mode: Enabled
Layer2-map: Disabled
Source Packet Routing (SPRING): Enabled
SRGB Config Range :
SRGB Start-Label : 100000, SRGB Index-Range : 1000
SRGB Block Allocation: Success
SRGB Start Index : 100000, SRGB Size : 1000, Label-Range: [ 100000, 100999 ]
Node Segments: Enabled
Ipv4 Index : 41
SRv6: Disabled
Post Convergence Backup: Disabled
Level 1
Internal route preference: 15
External route preference: 160
Prefix export count: 0
Wide metrics are enabled, Narrow metrics are enabled
Source Packet Routing is enabled
Level 2
Internal route preference: 18
External route preference: 165
Prefix export count: 0
Wide metrics are enabled, Narrow metrics are enabled
Source Packet Routing is enabled
pradeep@R1>
pradeep@R1> show isis database extensive | match Node
Node Segment Blocks Advertised:
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 41
Node Segment Blocks Advertised:
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 42
Node Segment Blocks Advertised:
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 43
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 44
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 45
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 46
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 47
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 48
pradeep@R1>
pradeep@R8> show isis overview
Instance: master
Router ID: 192.168.1.8
Hostname: R8
Sysid: 1921.6800.1008
Areaid: 49.0003
Adjacency holddown: enabled
Maximum Areas: 3
LSP life time: 1200
Attached bit evaluation: enabled
SPF delay: 200 msec, SPF holddown: 5000 msec, SPF rapid runs: 3
IPv4 is enabled, IPv6 is enabled, SPRING based MPLS is enabled
Traffic engineering: enabled
Traffic engineering v6: disabled
Restart: Disabled
Helper mode: Enabled
Layer2-map: Disabled
Source Packet Routing (SPRING): Enabled
SRGB Config Range :
SRGB Start-Label : 100000, SRGB Index-Range : 1000
SRGB Block Allocation: Success
SRGB Start Index : 100000, SRGB Size : 1000, Label-Range: [ 100000, 100999 ]
Node Segments: Enabled
Ipv4 Index : 48
SRv6: Disabled
Post Convergence Backup: Disabled
Level 1
Internal route preference: 15
External route preference: 160
Prefix export count: 0
Wide metrics are enabled, Narrow metrics are enabled
Source Packet Routing is enabled
Level 2
Internal route preference: 18
External route preference: 165
Prefix export count: 0
Wide metrics are enabled, Narrow metrics are enabled
Source Packet Routing is enabled
pradeep@R8>
inet.3 on R1
pradeep@R1> show route table inet.3
inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.1.2/32 *[L-ISIS/14] 08:51:11, metric 20
> to 10.1.3.3 via ge-0/0/1.0, Push 100042
192.168.1.3/32 *[L-ISIS/14] 09:46:03, metric 10
> to 10.1.3.3 via ge-0/0/1.0
192.168.1.4/32 *[L-ISIS/14] 09:35:21, metric 20
> to 10.1.3.3 via ge-0/0/1.0, Push 100044
192.168.1.5/32 *[L-ISIS/14] 09:31:43, metric 20
> to 10.1.3.3 via ge-0/0/1.0, Push 100045
192.168.1.6/32 *[L-ISIS/14] 09:28:16, metric 30
> to 10.1.3.3 via ge-0/0/1.0, Push 100046
192.168.1.7/32 *[L-ISIS/14] 09:26:51, metric 40
> to 10.1.3.3 via ge-0/0/1.0, Push 100047
192.168.1.8/32 *[L-ISIS/14] 08:52:18, metric 40
> to 10.1.3.3 via ge-0/0/1.0, Push 100048
pradeep@R1>
Traceroute from R1 to R8
pradeep@R1> traceroute mpls segment-routing isis 192.168.1.8
Probe options: ttl 64, retries 3, wait 10, paths 16, exp 7, fanout 16
ttl Label Protocol Address Previous Hop Probe Status
1 100048 ISIS 10.1.3.3 (null) Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
2 100048 ISIS 10.3.4.4 10.1.3.3 Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
3 100048 ISIS 10.4.6.6 10.3.4.4 Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
4 3 ISIS 10.6.8.8 10.4.6.6 Egress
FEC-Stack-Sent: ISIS
Path 1 via ge-0/0/1.0 destination 127.0.0.64
pradeep@R1>
Traceroute from R1 to R7
pradeep@R1> traceroute mpls segment-routing isis 192.168.1.7
Probe options: ttl 64, retries 3, wait 10, paths 16, exp 7, fanout 16
ttl Label Protocol Address Previous Hop Probe Status
1 100047 ISIS 10.1.3.3 (null) Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
2 100047 ISIS 10.3.4.4 10.1.3.3 Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
3 100047 ISIS 10.4.6.6 10.3.4.4 Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
4 3 ISIS 10.6.7.7 10.4.6.6 Egress
FEC-Stack-Sent: ISIS
Path 1 via ge-0/0/1.0 destination 127.0.0.64
pradeep@R1>
Traceroute from R1 to R6
pradeep@R1> traceroute mpls segment-routing isis 192.168.1.6
Probe options: ttl 64, retries 3, wait 10, paths 16, exp 7, fanout 16
ttl Label Protocol Address Previous Hop Probe Status
1 100046 ISIS 10.1.3.3 (null) Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
2 100046 ISIS 10.3.4.4 10.1.3.3 Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
3 3 ISIS 10.4.6.6 10.3.4.4 Egress
FEC-Stack-Sent: ISIS
Path 1 via ge-0/0/1.0 destination 127.0.0.64
pradeep@R1>
Traceroute from R1 to R5
pradeep@R1> traceroute mpls segment-routing isis 192.168.1.5
Probe options: ttl 64, retries 3, wait 10, paths 16, exp 7, fanout 16
ttl Label Protocol Address Previous Hop Probe Status
1 100045 ISIS 10.1.3.3 (null) Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
2 3 ISIS 10.3.5.5 10.1.3.3 Egress
FEC-Stack-Sent: ISIS
Path 1 via ge-0/0/1.0 destination 127.0.0.64
pradeep@R1>
Traceroute from R1 to R4
pradeep@R1> traceroute mpls segment-routing isis 192.168.1.4
Probe options: ttl 64, retries 3, wait 10, paths 16, exp 7, fanout 16
ttl Label Protocol Address Previous Hop Probe Status
1 100044 ISIS 10.1.3.3 (null) Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
2 3 ISIS 10.3.4.4 10.1.3.3 Egress
FEC-Stack-Sent: ISIS
Path 1 via ge-0/0/1.0 destination 127.0.0.64
pradeep@R1>
Traceroute from R1 to R3
pradeep@R1> traceroute mpls segment-routing isis 192.168.1.3
Probe options: ttl 64, retries 3, wait 10, paths 16, exp 7, fanout 16
ttl Label Protocol Address Previous Hop Probe Status
1 10.1.3.3 (null) Egress
FEC-Stack-Sent: ISIS
Path 1 via ge-0/0/1.0 destination 127.0.0.64
pradeep@R1>
Traceroute from R1 to R2
pradeep@R1> traceroute mpls segment-routing isis 192.168.1.2
Probe options: ttl 64, retries 3, wait 10, paths 16, exp 7, fanout 16
ttl Label Protocol Address Previous Hop Probe Status
1 100042 ISIS 10.1.3.3 (null) Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
2 3 ISIS 10.2.3.2 10.1.3.3 Egress
FEC-Stack-Sent: ISIS
Path 1 via ge-0/0/1.0 destination 127.0.0.64
pradeep@R1>
Route/Label Lookup from R1 to R8
pradeep@R1> show route 192.168.1.8
inet.0: 25 destinations, 25 routes (25 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.1.8/32 *[IS-IS/18] 08:59:28, metric 40
> to 10.1.3.3 via ge-0/0/1.0
inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.1.8/32 *[L-ISIS/14] 08:59:28, metric 40
> to 10.1.3.3 via ge-0/0/1.0, Push 100048
pradeep@R1>
pradeep@R2> show route label 100048
mpls.0: 16 destinations, 16 routes (16 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
100048 *[L-ISIS/14] 08:58:49, metric 40
> to 10.2.3.3 via ge-0/0/2.0, Swap 100048
pradeep@R2>
pradeep@R3> show route label 100048
mpls.0: 25 destinations, 25 routes (25 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
100048 *[L-ISIS/14] 09:00:24, metric 30
> to 10.3.4.4 via ge-0/0/4.0, Swap 100048
to 10.3.5.5 via ge-0/0/5.0, Swap 100048
pradeep@R3>
pradeep@R4> show route label 100048
mpls.0: 19 destinations, 19 routes (19 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
100048 *[L-ISIS/14] 09:00:51, metric 20
> to 10.4.6.6 via ge-0/0/1.0, Swap 100048
pradeep@R4>
pradeep@R5> show route label 100048
mpls.0: 19 destinations, 19 routes (19 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
100048 *[L-ISIS/14] 09:01:33, metric 20
> to 10.5.6.6 via ge-0/0/2.0, Swap 100048
pradeep@R5>
pradeep@R6> show route label 100048
mpls.0: 25 destinations, 25 routes (25 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
100048 *[L-ISIS/14] 09:01:47, metric 10
> to 10.6.8.8 via ge-0/0/5.0, Pop
100048(S=0) *[L-ISIS/14] 09:01:47, metric 10
> to 10.6.8.8 via ge-0/0/5.0, Pop
pradeep@R6>
pradeep@R8> show route 192.168.1.8
inet.0: 24 destinations, 24 routes (24 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.1.8/32 *[Direct/0] 09:03:24
> via lo0.0
pradeep@R8>
R1 L3VPN table
pradeep@R1> show route table XYZ
XYZ.inet.0: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
172.16.1.0/24 *[Direct/0] 5w3d 05:42:45
> via ge-0/0/2.0
172.16.1.1/32 *[Local/0] 5w3d 05:42:45
Local via ge-0/0/2.0
172.16.101.0/24 *[BGP/170] 09:16:16, localpref 100, from 192.168.1.8
AS path: I, validation-state: unverified
> to 10.1.3.3 via ge-0/0/1.0, Push 16, Push 100048(top)
192.168.11.0/24 *[BGP/170] 09:16:16, localpref 100, from 192.168.1.8
AS path: I, validation-state: unverified
> to 10.1.3.3 via ge-0/0/1.0, Push 16, Push 100048(top)
192.168.12.0/24 *[BGP/170] 09:16:16, localpref 100, from 192.168.1.8
AS path: I, validation-state: unverified
> to 10.1.3.3 via ge-0/0/1.0, Push 16, Push 100048(top)
192.168.150.0/24 *[Static/5] 5w3d 05:42:45
> to 172.16.1.101 via ge-0/0/2.0
192.168.250.0/24 *[Static/5] 5w3d 05:42:45
> to 172.16.1.101 via ge-0/0/2.0
XYZ.inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
ff02::2/128 *[INET6/0] 5w3d 05:42:45
MultiRecv
pradeep@R1>
R8 inet.3 table
pradeep@R8> show route table inet.3
inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.1.1/32 *[L-ISIS/14] 09:03:11, metric 40
> to 10.6.8.6 via ge-0/0/5.0, Push 100041
192.168.1.2/32 *[L-ISIS/14] 09:02:03, metric 40
> to 10.6.8.6 via ge-0/0/5.0, Push 100042
192.168.1.3/32 *[L-ISIS/14] 09:03:11, metric 30
> to 10.6.8.6 via ge-0/0/5.0, Push 100043
192.168.1.4/32 *[L-ISIS/14] 09:03:11, metric 20
> to 10.6.8.6 via ge-0/0/5.0, Push 100044
192.168.1.5/32 *[L-ISIS/14] 09:03:11, metric 20
> to 10.6.8.6 via ge-0/0/5.0, Push 100045
192.168.1.6/32 *[L-ISIS/14] 09:03:11, metric 10
> to 10.6.8.6 via ge-0/0/5.0
192.168.1.7/32 *[L-ISIS/14] 09:03:01, metric 20
> to 10.6.8.6 via ge-0/0/5.0, Push 100047
pradeep@R8>
Traceroute from R8 to R1
pradeep@R8> traceroute mpls segment-routing isis 192.168.1.1
Probe options: ttl 64, retries 3, wait 10, paths 16, exp 7, fanout 16
ttl Label Protocol Address Previous Hop Probe Status
1 100041 ISIS 10.6.8.6 (null) Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
2 100041 ISIS 10.4.6.4 10.6.8.6 Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
3 100041 ISIS 10.3.4.3 10.4.6.4 Success
FEC-Stack-Sent: ISIS
ttl Label Protocol Address Previous Hop Probe Status
4 3 ISIS 10.1.3.1 10.3.4.3 Egress
FEC-Stack-Sent: ISIS
Path 1 via ge-0/0/5.0 destination 127.0.0.64
pradeep@R8>
R8 L3VPN table
pradeep@R8> show route table XYZ.inet
XYZ.inet.0: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
172.16.1.0/24 *[BGP/170] 09:13:20, localpref 100, from 192.168.1.1
AS path: I, validation-state: unverified
> to 10.6.8.6 via ge-0/0/5.0, Push 49, Push 100041(top)
172.16.101.0/24 *[Direct/0] 09:13:28
> via ge-0/0/0.0
172.16.101.1/32 *[Local/0] 09:13:28
Local via ge-0/0/0.0
192.168.11.0/24 *[Static/5] 09:13:28
> to 172.16.101.101 via ge-0/0/0.0
192.168.12.0/24 *[Static/5] 09:13:28
> to 172.16.101.101 via ge-0/0/0.0
192.168.150.0/24 *[BGP/170] 09:13:20, localpref 100, from 192.168.1.1
AS path: I, validation-state: unverified
> to 10.6.8.6 via ge-0/0/5.0, Push 49, Push 100041(top)
192.168.250.0/24 *[BGP/170] 09:13:20, localpref 100, from 192.168.1.1
AS path: I, validation-state: unverified
> to 10.6.8.6 via ge-0/0/5.0, Push 49, Push 100041(top)
XYZ.inet6.0: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
ff02::2/128 *[INET6/0] 09:14:14
MultiRecv
pradeep@R8>
MPLS table on R3
pradeep@R3> show route table mpls.0
mpls.0: 25 destinations, 25 routes (25 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
0 *[MPLS/0] 7w3d 14:56:40, metric 1
to table inet.0
0(S=0) *[MPLS/0] 7w3d 14:56:40, metric 1
to table mpls.0
1 *[MPLS/0] 7w3d 14:56:40, metric 1
Receive
2 *[MPLS/0] 7w3d 14:56:40, metric 1
to table inet6.0
2(S=0) *[MPLS/0] 7w3d 14:56:40, metric 1
to table mpls.0
13 *[MPLS/0] 7w3d 14:56:40, metric 1
Receive
50 *[L-ISIS/14] 09:58:14, metric 0
> to 10.3.5.5 via ge-0/0/5.0, Pop
50(S=0) *[L-ISIS/14] 09:58:14, metric 0
> to 10.3.5.5 via ge-0/0/5.0, Pop
51 *[L-ISIS/14] 09:58:14, metric 0
> to 10.3.4.4 via ge-0/0/4.0, Pop
51(S=0) *[L-ISIS/14] 09:58:14, metric 0
> to 10.3.4.4 via ge-0/0/4.0, Pop
53 *[L-ISIS/14] 09:58:14, metric 0
> to 10.1.3.1 via ge-0/0/1.0, Pop
53(S=0) *[L-ISIS/14] 09:58:14, metric 0
> to 10.1.3.1 via ge-0/0/1.0, Pop
54 *[L-ISIS/14] 09:03:32, metric 0
> to 10.2.3.2 via ge-0/0/2.0, Pop
54(S=0) *[L-ISIS/14] 09:03:32, metric 0
> to 10.2.3.2 via ge-0/0/2.0, Pop
100041 *[L-ISIS/14] 09:58:14, metric 10
> to 10.1.3.1 via ge-0/0/1.0, Pop
100041(S=0) *[L-ISIS/14] 09:58:14, metric 10
> to 10.1.3.1 via ge-0/0/1.0, Pop
100042 *[L-ISIS/14] 09:03:22, metric 10
> to 10.2.3.2 via ge-0/0/2.0, Pop
100042(S=0) *[L-ISIS/14] 09:03:22, metric 10
> to 10.2.3.2 via ge-0/0/2.0, Pop
100044 *[L-ISIS/14] 09:47:32, metric 10
> to 10.3.4.4 via ge-0/0/4.0, Pop
100044(S=0) *[L-ISIS/14] 09:47:32, metric 10
> to 10.3.4.4 via ge-0/0/4.0, Pop
100045 *[L-ISIS/14] 09:43:55, metric 10
> to 10.3.5.5 via ge-0/0/5.0, Pop
100045(S=0) *[L-ISIS/14] 09:43:55, metric 10
> to 10.3.5.5 via ge-0/0/5.0, Pop
100046 *[L-ISIS/14] 09:40:27, metric 20
> to 10.3.4.4 via ge-0/0/4.0, Swap 100046
to 10.3.5.5 via ge-0/0/5.0, Swap 100046
100047 *[L-ISIS/14] 09:39:03, metric 30
> to 10.3.4.4 via ge-0/0/4.0, Swap 100047
to 10.3.5.5 via ge-0/0/5.0, Swap 100047
100048 *[L-ISIS/14] 09:04:29, metric 30
> to 10.3.4.4 via ge-0/0/4.0, Swap 100048
to 10.3.5.5 via ge-0/0/5.0, Swap 100048
pradeep@R3>
R6 MPLS table
pradeep@R6> show route table mpls.0
mpls.0: 25 destinations, 25 routes (25 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
0 *[MPLS/0] 7w3d 15:17:00, metric 1
to table inet.0
0(S=0) *[MPLS/0] 7w3d 15:17:00, metric 1
to table mpls.0
1 *[MPLS/0] 7w3d 15:17:00, metric 1
Receive
2 *[MPLS/0] 7w3d 15:17:00, metric 1
to table inet6.0
2(S=0) *[MPLS/0] 7w3d 15:17:00, metric 1
to table mpls.0
13 *[MPLS/0] 7w3d 15:17:00, metric 1
Receive
47 *[L-ISIS/14] 09:33:21, metric 0
> to 10.6.8.8 via ge-0/0/5.0, Pop
47(S=0) *[L-ISIS/14] 09:33:21, metric 0
> to 10.6.8.8 via ge-0/0/5.0, Pop
48 *[L-ISIS/14] 10:09:18, metric 0
> to 10.6.7.7 via ge-0/0/4.0, Pop
48(S=0) *[L-ISIS/14] 10:09:18, metric 0
> to 10.6.7.7 via ge-0/0/4.0, Pop
49 *[L-ISIS/14] 10:09:18, metric 0
> to 10.5.6.5 via ge-0/0/2.0, Pop
49(S=0) *[L-ISIS/14] 10:09:18, metric 0
> to 10.5.6.5 via ge-0/0/2.0, Pop
50 *[L-ISIS/14] 10:09:18, metric 0
> to 10.4.6.4 via ge-0/0/1.0, Pop
50(S=0) *[L-ISIS/14] 10:09:18, metric 0
> to 10.4.6.4 via ge-0/0/1.0, Pop
100041 *[L-ISIS/14] 10:09:18, metric 30
> to 10.4.6.4 via ge-0/0/1.0, Swap 100041
to 10.5.6.5 via ge-0/0/2.0, Swap 100041
100042 *[L-ISIS/14] 09:32:13, metric 30
> to 10.4.6.4 via ge-0/0/1.0, Swap 100042
to 10.5.6.5 via ge-0/0/2.0, Swap 100042
100043 *[L-ISIS/14] 10:09:18, metric 20
> to 10.4.6.4 via ge-0/0/1.0, Swap 100043
to 10.5.6.5 via ge-0/0/2.0, Swap 100043
100044 *[L-ISIS/14] 10:09:18, metric 10
> to 10.4.6.4 via ge-0/0/1.0, Pop
100044(S=0) *[L-ISIS/14] 10:09:18, metric 10
> to 10.4.6.4 via ge-0/0/1.0, Pop
100045 *[L-ISIS/14] 10:09:18, metric 10
> to 10.5.6.5 via ge-0/0/2.0, Pop
100045(S=0) *[L-ISIS/14] 10:09:18, metric 10
> to 10.5.6.5 via ge-0/0/2.0, Pop
100047 *[L-ISIS/14] 10:07:54, metric 10
> to 10.6.7.7 via ge-0/0/4.0, Pop
100047(S=0) *[L-ISIS/14] 10:07:54, metric 10
> to 10.6.7.7 via ge-0/0/4.0, Pop
100048 *[L-ISIS/14] 09:33:11, metric 10
> to 10.6.8.8 via ge-0/0/5.0, Pop
100048(S=0) *[L-ISIS/14] 09:33:11, metric 10
> to 10.6.8.8 via ge-0/0/5.0, Pop
pradeep@R6>
R3 inet.3 table
pradeep@R3> show route table inet.3
inet.3: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
192.168.1.1/32 *[L-ISIS/14] 09:59:20, metric 10
> to 10.1.3.1 via ge-0/0/1.0
192.168.1.2/32 *[L-ISIS/14] 09:04:28, metric 10
> to 10.2.3.2 via ge-0/0/2.0
192.168.1.4/32 *[L-ISIS/14] 09:48:38, metric 10
> to 10.3.4.4 via ge-0/0/4.0
192.168.1.5/32 *[L-ISIS/14] 09:45:01, metric 10
> to 10.3.5.5 via ge-0/0/5.0
192.168.1.6/32 *[L-ISIS/14] 09:41:33, metric 20
to 10.3.4.4 via ge-0/0/4.0, Push 100046
> to 10.3.5.5 via ge-0/0/5.0, Push 100046
192.168.1.7/32 *[L-ISIS/14] 09:40:09, metric 30
to 10.3.4.4 via ge-0/0/4.0, Push 100047
> to 10.3.5.5 via ge-0/0/5.0, Push 100047
192.168.1.8/32 *[L-ISIS/14] 09:05:35, metric 30
> to 10.3.4.4 via ge-0/0/4.0, Push 100048
to 10.3.5.5 via ge-0/0/5.0, Push 100048
pradeep@R3>
pradeep@R3> show isis database extensive | match SID
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
NLPID: 0x83, Fixed length: 27 bytes, Version: 1, Sysid length: 0 bytes
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 41
SPRING Capability - Flags: 0xc0(I:1,V:1), Range: 1000, SID-Label: 100000
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
NLPID: 0x83, Fixed length: 27 bytes, Version: 1, Sysid length: 0 bytes
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 42
SPRING Capability - Flags: 0xc0(I:1,V:1), Range: 1000, SID-Label: 100000
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 16
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 53, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 54, Weight: 0, Flags: --VL--
NLPID: 0x83, Fixed length: 27 bytes, Version: 1, Sysid length: 0 bytes
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 43
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 44
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 45
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 46
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 47
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 48
SPRING Capability - Flags: 0xc0(I:1,V:1), Range: 1000, SID-Label: 100000
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 53
P2P IPv4 Adj-SID: 53, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 54
P2P IPv4 Adj-SID: 54, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
NLPID: 0x83, Fixed length: 27 bytes, Version: 1, Sysid length: 0 bytes
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 43
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 41
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 42
SPRING Capability - Flags: 0xc0(I:1,V:1), Range: 1000, SID-Label: 100000
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 51
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
NLPID: 0x83, Fixed length: 27 bytes, Version: 1, Sysid length: 0 bytes
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 44
SPRING Capability - Flags: 0xc0(I:1,V:1), Range: 1000, SID-Label: 100000
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 45
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 46
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
NLPID: 0x83, Fixed length: 27 bytes, Version: 1, Sysid length: 0 bytes
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 45
SPRING Capability - Flags: 0xc0(I:1,V:1), Range: 1000, SID-Label: 100000
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 47
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 48
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
NLPID: 0x83, Fixed length: 27 bytes, Version: 1, Sysid length: 0 bytes
Node SID, Flags: 0x40(R:0,N:1,P:0,E:0,V:0,L:0), Algo: SPF(0), Value: 46
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 47
Node SID, Flags: 0xe0(R:1,N:1,P:1,E:0,V:0,L:0), Algo: SPF(0), Value: 48
SPRING Capability - Flags: 0xc0(I:1,V:1), Range: 1000, SID-Label: 100000
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 49
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
pradeep@R3>
IS-IS Adjacencies
pradeep@R1> show isis adjacency extensive
R3
Interface: ge-0/0/1.0, Level: 1, State: Up, Expires in 20 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:24:37 ago
Circuit type: 1, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.1.3.3
Level 1 IPv4 Adj-SID: 50
Transition log:
When State Event Down reason
Tue Aug 15 00:33:21 Up Seenself
pradeep@R1> exit
pradeep@R2> show isis adjacency extensive
R3
Interface: ge-0/0/2.0, Level: 1, State: Up, Expires in 25 secs
Priority: 0, Up/Down transitions: 1, Last transition: 09:20:52 ago
Circuit type: 1, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.2.3.3
Level 1 IPv4 Adj-SID: 16
Transition log:
When State Event Down reason
Tue Aug 15 01:36:00 Up Seenself
pradeep@R2> exit
pradeep@R3> show isis adjacency extensive
R1
Interface: ge-0/0/1.0, Level: 1, State: Up, Expires in 21 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:29:25 ago
Circuit type: 1, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.1.3.1
Level 1 IPv4 Adj-SID: 53
Transition log:
When State Event Down reason
Tue Aug 15 00:28:09 Up Seenself
R2
Interface: ge-0/0/2.0, Level: 1, State: Up, Expires in 24 secs
Priority: 0, Up/Down transitions: 1, Last transition: 09:21:57 ago
Circuit type: 1, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.2.3.2
Level 1 IPv4 Adj-SID: 54
Transition log:
When State Event Down reason
Tue Aug 15 01:35:37 Up Seenself
R4
Interface: ge-0/0/4.0, Level: 2, State: Up, Expires in 21 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:29:09 ago
Circuit type: 3, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.3.4.4
Level 2 IPv4 Adj-SID: 51
Transition log:
When State Event Down reason
Tue Aug 15 00:28:24 Up Seenself
R5
Interface: ge-0/0/5.0, Level: 2, State: Up, Expires in 22 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:28:04 ago
Circuit type: 3, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.3.5.5
Level 2 IPv4 Adj-SID: 50
Transition log:
When State Event Down reason
Tue Aug 15 00:29:30 Up Seenself
pradeep@R3>
pradeep@R4> show isis adjacency extensive
R6
Interface: ge-0/0/1.0, Level: 2, State: Up, Expires in 21 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:29:13 ago
Circuit type: 2, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.4.6.6
Level 2 IPv4 Adj-SID: 46
Transition log:
When State Event Down reason
Tue Aug 15 00:28:51 Up Seenself
R3
Interface: ge-0/0/4.0, Level: 2, State: Up, Expires in 19 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:29:42 ago
Circuit type: 2, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.3.4.3
Level 2 IPv4 Adj-SID: 45
Transition log:
When State Event Down reason
Tue Aug 15 00:28:23 Up Seenself
pradeep@R4>
pradeep@R5> show isis adjacency extensive
R6
Interface: ge-0/0/2.0, Level: 2, State: Up, Expires in 21 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:29:12 ago
Circuit type: 2, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.5.6.6
Level 2 IPv4 Adj-SID: 48
Transition log:
When State Event Down reason
Tue Aug 15 00:29:19 Up Seenself
R3
Interface: ge-0/0/5.0, Level: 2, State: Up, Expires in 21 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:29:01 ago
Circuit type: 2, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.3.5.3
Level 2 IPv4 Adj-SID: 47
Transition log:
When State Event Down reason
Tue Aug 15 00:29:30 Up Seenself
pradeep@R5>
pradeep@R6> show isis adjacency extensive
R4
Interface: ge-0/0/1.0, Level: 2, State: Up, Expires in 22 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:30:14 ago
Circuit type: 3, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.4.6.4
Level 2 IPv4 Adj-SID: 50
Transition log:
When State Event Down reason
Tue Aug 15 00:28:25 Up Seenself
R5
Interface: ge-0/0/2.0, Level: 2, State: Up, Expires in 21 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:29:48 ago
Circuit type: 3, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.5.6.5
Level 2 IPv4 Adj-SID: 49
Transition log:
When State Event Down reason
Tue Aug 15 00:28:50 Up Seenself
R7
Interface: ge-0/0/4.0, Level: 1, State: Up, Expires in 19 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:30:06 ago
Circuit type: 1, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.6.7.7
Level 1 IPv4 Adj-SID: 48
Transition log:
When State Event Down reason
Tue Aug 15 00:28:33 Up Seenself
R8
Interface: ge-0/0/5.0, Level: 1, State: Up, Expires in 24 secs
Priority: 0, Up/Down transitions: 1, Last transition: 09:24:28 ago
Circuit type: 1, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.6.8.8
Level 1 IPv4 Adj-SID: 47
Transition log:
When State Event Down reason
Tue Aug 15 01:34:11 Up Seenself
pradeep@R6>
pradeep@R7> show isis adjacency extensive
R6
Interface: ge-0/0/4.0, Level: 1, State: Up, Expires in 24 secs
Priority: 0, Up/Down transitions: 1, Last transition: 10:30:46 ago
Circuit type: 1, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.6.7.6
Level 1 IPv4 Adj-SID: 16
Transition log:
When State Event Down reason
Tue Aug 15 00:29:04 Up Seenself
pradeep@R7>
pradeep@R8> show isis adjacency extensive
R6
Interface: ge-0/0/5.0, Level: 1, State: Up, Expires in 23 secs
Priority: 0, Up/Down transitions: 1, Last transition: 09:25:33 ago
Circuit type: 1, Speaks: IP, IPv6
Topologies: Unicast
Restart capable: Yes, Adjacency advertisement: Advertise
IP addresses: 10.6.8.6
Level 1 IPv4 Adj-SID: 17
Transition log:
When State Event Down reason
Tue Aug 15 01:40:58 Up Seenself
pradeep@R8>
Adjacency SIDs
pradeep@R1> show isis database extensive | match adj
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 16
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 53, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 54, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 53
P2P IPv4 Adj-SID: 53, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 54
P2P IPv4 Adj-SID: 54, Weight: 0, Flags: --VL--
pradeep@R1>
pradeep@R2> show isis database extensive | match adj
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 16
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 53, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 54, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 53
P2P IPv4 Adj-SID: 53, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 54
P2P IPv4 Adj-SID: 54, Weight: 0, Flags: --VL--
pradeep@R2>
pradeep@R3> show isis database extensive | match adj
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 16
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 53, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 54, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 53
P2P IPv4 Adj-SID: 53, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 54
P2P IPv4 Adj-SID: 54, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 51
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 45
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 46
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 47
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 48
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 49
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
pradeep@R3>
pradeep@R4> show isis database extensive | match adj
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 51
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 45
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 46
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 47
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 48
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 49
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
pradeep@R4>
pradeep@R5> show isis database extensive | match adj
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 51
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 45
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 46
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 47
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 48
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 49
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
pradeep@R5>
pradeep@R6> show isis database extensive | match adj
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 48
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 47
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 16
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 17, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 17
P2P IPv4 Adj-SID: 17, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 51
P2P IPv4 Adj-SID: 51, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 45
P2P IPv4 Adj-SID: 45, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 46
P2P IPv4 Adj-SID: 46, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 47
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 48
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 49
P2P IPv4 Adj-SID: 49, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 50
P2P IPv4 Adj-SID: 50, Weight: 0, Flags: --VL--
pradeep@R6>
pradeep@R7> show isis database extensive | match adj
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 48
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 47
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 16
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 17, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 17
P2P IPv4 Adj-SID: 17, Weight: 0, Flags: --VL--
pradeep@R7>
pradeep@R8> show isis database extensive | match adj
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 48
P2P IPv4 Adj-SID: 48, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 47
P2P IPv4 Adj-SID: 47, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 16
P2P IPv4 Adj-SID: 16, Weight: 0, Flags: --VL--
P2P IPv4 Adj-SID: 17, Weight: 0, Flags: --VL--
P2P IPV4 Adj-SID - Flags:0x30(F:0,B:0,V:1,L:1,S:0,P:0), Weight:0, Label: 17
P2P IPv4 Adj-SID: 17, Weight: 0, Flags: --VL--
pradeep@R8>
With this we conclude that the labels can be consistent and easier to follow (or troubleshoot) the LSPs with Segment routing.
