Tuning Adjacencies For Is-Is - Cisco ASR 9000 Series Routing Configuration Manual

Tuning Adjacencies for IS-IS

Command or Action
Step 6
metric-style wide [ level { 1 | 2 }]
Example:
RP/0/RSP0/CPU0:router(config-isis-af)# metric-style
wide level 1
Step 7
commit
Step 8 show isis [ instance instance-id ] mpls traffic-eng tunnel
Example:
RP/0/RSP0/CPU0:router# show isis instance isp mpls
traffic-eng tunnel
Step 9 show isis [ instance instance-id ] mpls traffic-eng
adjacency-log
Example:
RP/0/RSP0/CPU0:router# show isis instance isp mpls
traffic-eng adjacency-log
Step 10 show isis [ instance instance-id ] mpls traffic-eng
advertisements
Example:
RP/0/RSP0/CPU0:router# show isis instance isp mpls
traffic-eng advertisements
Tuning Adjacencies for IS-IS
This task explains how to enable logging of adjacency state changes, alter the timers for IS-IS adjacency
packets, and display various aspects of adjacency state. Tuning your IS-IS adjacencies increases network
stability when links are congested. This task is optional.
For point-to-point links, IS-IS sends only a single hello for Level 1 and Level 2, which means that the level
modifiers are meaningless on point-to-point links. To modify hello parameters for a point-to-point interface,
omit the specification of the level options.
The options configurable in the interface submode apply only to that interface. By default, the values are
applied to both Level 1 and Level 2.
The hello-password command can be used to prevent adjacency formation with unauthorized or undesired
routers. This ability is particularly useful on a LAN, where connections to routers with which you have no
desire to establish adjacencies are commonly found.
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
376
Purpose
Configures a router to generate and accept only wide
link metrics in the Level 1 area.
(Optional) Displays MPLS TE tunnel information.
(Optional) Displays a log of MPLS TE IS-IS adjacency
changes.
(Optional) Displays the latest flooded record from MPLS
TE.
Implementing IS-IS