ISIS Case study

densma

I like to know if LSP cannot be set globally.

under ISIS case study change "Configure the network to keep LSPs that are up to 3600 seconds old"
when i configured LSP Interval globally, the change is not applied.
but when i configured on interface specific then it works.
any idea?



root@R5# run show isis interface detail
IS-IS interface database:
fxp0.0
Index: 64, State: 0x6, Circuit id: 0x2, Circuit type: 2
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
2 1 64 5 3.000 9 R5.02 (us)
fxp1.0
Index: 65, State: 0x6, Circuit id: 0x3, Circuit type: 2
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
2 1 64 5 3.000 9 R5.03 (us)
fxp2.0
Index: 66, State: 0x6, Circuit id: 0x4, Circuit type: 1
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
1 1 0 5 3.000 9 R5.04 (us)
fxp3.0
Index: 67, State: 0x6, Circuit id: 0x1, Circuit type: 1
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
1 1 0 5 9.000 27 R6.02 (not us)
lo0.0
Index: 68, State: 0x6, Circuit id: 0x1, Circuit type: 0
LSP interval: 100 ms, CSNP interval: disabled
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
2 0 64 0 Passive

[edit protocols isis]
root@R5# set lsp-lifetime 3600

[edit protocols isis]
root@R5# commit
commit complete

[edit protocols isis]
root@R5# run show isis interface detail
IS-IS interface database:
fxp0.0
Index: 64, State: 0x6, Circuit id: 0x2, Circuit type: 2
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
2 1 64 5 3.000 9 R5.02 (us)
fxp1.0
Index: 65, State: 0x6, Circuit id: 0x3, Circuit type: 2
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
2 1 64 5 3.000 9 R5.03 (us)
fxp2.0
Index: 66, State: 0x6, Circuit id: 0x4, Circuit type: 1
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
1 1 0 5 3.000 9 R5.04 (us)
fxp3.0
Index: 67, State: 0x6, Circuit id: 0x1, Circuit type: 1
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
1 1 0 5 9.000 27 R6.02 (not us)
lo0.0
Index: 68, State: 0x6, Circuit id: 0x1, Circuit type: 0
LSP interval: 100 ms, CSNP interval: disabled
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
2 0 64 0 Passive

[edit protocols isis]
root@R5# set interface fxp0.0 lsp-interval 3600

[edit protocols isis]
root@R5# commit
commit complete

[edit protocols isis]
root@R5# run show isis interface detail
IS-IS interface database:
fxp0.0
Index: 64, State: 0x26, Circuit id: 0x2, Circuit type: 2
LSP interval: 3600 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
2 1 64 5 3.000 9 R5.02 (us)
fxp1.0
Index: 65, State: 0x6, Circuit id: 0x3, Circuit type: 2
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
2 1 64 5 3.000 9 R5.03 (us)
fxp2.0
Index: 66, State: 0x6, Circuit id: 0x4, Circuit type: 1
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
1 1 0 5 3.000 9 R5.04 (us)
fxp3.0
Index: 67, State: 0x6, Circuit id: 0x1, Circuit type: 1
LSP interval: 100 ms, CSNP interval: 10 s
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
1 1 0 5 9.000 27 R6.02 (not us)
lo0.0
Index: 68, State: 0x6, Circuit id: 0x1, Circuit type: 0
LSP interval: 100 ms, CSNP interval: disabled
Level Adjacencies Priority Metric Hello (s) Hold (s) Designated Router
2 0 64 0 Passive

[edit protocols isis]
root@R5#

hoogen82

You are looking at two different commands...

LSP Lifetime is for the ISIS database...I set this command on my R3 router and all R3 routers reported the change in lifetime...


r3.00-00 Sequence: 0x122, Checksum: 0x8d8c, Lifetime: 3588 secs
IS neighbor: r3.02 Metric: 10
IS neighbor: r3.04 Metric: 10
IP prefix: 10.0.4.0/30 Metric: 10 Internal Up
IP prefix: 10.0.4.12/30 Metric: 10 Internal Up

r3.02-00 Sequence: 0x11c, Checksum: 0x67c7, Lifetime: 3588 secs
IS neighbor: r1.00 Metric: 0
IS neighbor: r3.00 Metric: 0

r3.04-00 Sequence: 0x11c, Checksum: 0x5907, Lifetime: 3588 secs
IS neighbor: r2.00 Metric: 0
IS neighbor: r3.00 Metric: 0

r4.00-00 Sequence: 0x125, Checksum: 0xae5, Lifetime: 492 secs
IS neighbor: r4.02 Metric: 10
IS neighbor: r4.04 Metric: 10
IP prefix: 10.0.4.8/30 Metric: 10 Internal Up
IP prefix: 10.0.4.16/30 Metric: 10 Internal Up

r4.02-00 Sequence: 0x11e, Checksum: 0x6396, Lifetime: 716 secs
IS neighbor: r1.00 Metric: 0
IS neighbor: r4.00 Metric: 0

r4.04-00 Sequence: 0x11f, Checksum: 0x53d6, Lifetime: 716 secs
IS neighbor: r2.00 Metric: 0
IS neighbor: r4.00 Metric: 0

IS-IS level 2 link-state database:

r3.00-00 Sequence: 0x16c, Checksum: 0x8171, Lifetime: 3595 secs
IS neighbor: r3.03 Metric: 10
IS neighbor: r4.00 Metric: 10
IS neighbor: r5.00 Metric: 10
IP prefix: 10.0.2.0/30 Metric: 10 Internal Up
IP prefix: 10.0.2.4/30 Metric: 10 Internal Up
IP prefix: 10.0.2.12/30 Metric: 10 Internal Up
IP prefix: 10.0.3.3/32 Metric: 0 Internal Up
IP prefix: 10.0.4.0/30 Metric: 10 Internal Up
IP prefix: 10.0.4.4/30 Metric: 20 Internal Up
IP prefix: 10.0.4.8/30 Metric: 20 Internal Up
IP prefix: 10.0.4.12/30 Metric: 10 Internal Up
IP prefix: 10.0.4.16/30 Metric: 20 Internal Up
IP prefix: 10.0.5.0/24 Metric: 20 Internal Up
IP prefix: 10.0.6.1/32 Metric: 10 Internal Up
IP prefix: 10.0.6.2/32 Metric: 10 Internal Up

r3.03-00 Sequence: 0x13e, Checksum: 0x1cef, Lifetime: 3588 secs
IS neighbor: r3.00 Metric: 0
IS neighbor: r6.00 Metric: 0


LSP-interval though refer lsp-interval - JUNOS 9.4 Routing Protocols Configuration Guide

Interesting to note though that the range is 0-1000 and you were able to give 3600...

Cheers,
Hoogen