Reference Guide

Database Sync count : 0 (level-1), 0 (level-2)
Circuit GigabitEthernet 2/10:
Mode: Normal L1-State:NORMAL, L2-State: NORMAL
L1: Send/Receive: RR:0/0, RA: 0/0, SA:0/0
T1 time left: 0, retry count left:0
L2: Send/Receive: RR:0/0, RA: 0/0, SA:0/0
T1 time left: 0, retry count left:0
Dell#
To view all interfaces configured with IS-IS routing along with the defaults, use the show isis
interface command in EXEC Privilege mode.
Dell#show isis interface G1/34
GigabitEthernet 2/10 is up, line protocol is up
MTU 1497, Encapsulation SAP
Routing Protocol: IS-IS
Circuit Type: Level-1-2
Interface Index 0x62cc03a, Local circuit ID 1
Level-1 Metric: 10, Priority: 64, Circuit ID: 0000.0000.000B.01
Hello Interval: 10, Hello Multiplier: 3, CSNP Interval: 10
Number of active level-1 adjacencies: 1
Level-2 Metric: 10, Priority: 64, Circuit ID: 0000.0000.000B.01
Hello Interval: 10, Hello Multiplier: 3, CSNP Interval: 10
Number of active level-2 adjacencies: 1
Next IS-IS LAN Level-1 Hello in 4 seconds
Next IS-IS LAN Level-2 Hello in 6 seconds
LSP Interval: 33 Next IS-IS LAN Level-1 Hello in 4 seconds
Next IS-IS LAN Level-2 Hello in 6 seconds
LSP Interval: 33
Restart Capable Neighbors: 2, In Start: 0, In Restart: 0
Dell#
Changing LSP Attributes
IS-IS routers flood link state PDUs (LSPs) to exchange routing information. LSP attributes include the
generation interval, maximum transmission unit (MTU) or size, and the refresh interval.
You can modify the LSP attribute defaults, but it is not necessary.
To change the defaults, use any or all of the following commands.
• Set interval between LSP generation.
ROUTER ISIS mode
lsp-gen-interval [level-1 | level-2] seconds
– seconds: the range is from 0 to 120.
The default is 5 seconds.
The default level is Level 1.
• Set the LSP size.
ROUTER ISIS mode
lsp-mtu size
– size: the range is from 128 to 9195.
The default is 1497.
Intermediate System to Intermediate System
521