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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 7 Configuring NSF with SSO Supervisor Engine Redundancy
NSF Configuration Tasks
Multicast MLS NSF with SSO is on by default when SSO is selected as the redundancy mode. To
configure multicast NSF with SSO parameters, perform this task:
Verifying Multicast NSF with SSO
To verify the multicast NSF with SSO settings, enter the show mls ip multicast sso command:
router# show mls ip multicast sso
Multicast SSO is enabled
Multicast HA Parameters
---------------------------------------------------+------+
protocol convergence timeout 120 secs
flow leak percent 10
flow leak interval 60 secs
Configuring CEF NSF
The CEF NSF feature operates by default while the networking device is running in SSO mode. No
configuration is necessary.
Verifying CEF NSF
To verify that CEF is NSF-capable, enter the show cef state command:
router# show cef state
CEF Status [RP]
CEF enabled/running
dCEF enabled/running
CEF switching enabled/running
CEF default capabilities:
Always FIB switching: yes
Default CEF switching: yes
Command Purpose
Step 1
Router# configure terminal
Enters global configuration mode.
Step 2
Router(config)# mls ip multicast sso convergence-time
time
Specifies the maximum time to wait for protocol
convergence; valid values are from 0 to 3600
seconds.
Step 3
Router(config)# mls ip multicast sso leak
interval
Specifies the packet leak interval; valid values are
from 0 to 3600 seconds. For PIM sparse mode and
PIM dense mode this is the period of time after
which packet leaking for existing PIM sparse mode
and PIM dense mode mutlitcast forwarding entries
should be completed.
Step 4
Router(config)# mls ip multicast sso leak
percentage
Specifies the percentage of multicast flows; valid
values are from 1 to 100 percent. The value
represents the percentage of the total number of
existing PIM sparse mode and PIM dense mode
multicast flows that should be flagged for packet
leaking.
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