134 Cisco LAN Switching Configuration Handbook
Specifies the maximum time to wait for protocol convergence; valid values are
from 0 to 3600 seconds.
b. (Optional) Configure Packet Leak interval:
(global) 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 multicast for-
warding entries should be completed.
c. (Optional) Configure multicast flow value:
(global) mls ip multicast sso leak percentage
Specifies the percentage of multicast flows; valid values are from 1 to 100 per-
cent. 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.
5. Configuring L3 NSF with SSO.
If you want to have NSF for your routing protocols so that L3 forwarding is not
interrupted, you will be required to configure NSF for each routing protocol.
a. To configure BGP for NSF, perform this task:
(global) router bgp as-number number
(router) bgp graceful-restart
This command enables NSF awareness on the BGP router. This must be config-
ured on BGP peer device for this switch regardless of whether it has dual super-
visors.
b. To configure OSPF for NSF, perform this task:
(global) router ospf process-id
(router) nsf
This command enables NSF awareness on the BGP router. This must be config-
ured on OSPF peer device for this switch regardless of whether it has dual super-
visors.
c. To configure BGP for NSF, perform this task:
(global) router EIGRP as-number
(router) nsf
This command enables NSF awareness on the BGP router. This must be config-
ured on EIGRO peer device for this switch regardless of whether it has dual
supervisors.
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