Leaflet

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OL-11615-01
to the MSFC3 for forwarding and replication, which might otherwise increase CPU utilization. This rate
limiter is enabled by default with a limit of 100000pps, and a burst of 100 packets. To enable and set the
multicast partially switched flows rate limiter, use the mls rate-limit multicast ipv4 partial command.
Router(config)# mls rate-limit multicast ipv4 partial pps [ packets-in-burst ]
The multicast directly connected rate limiter limits the multicast packets from directly connected
sources. This rate limiter is disabled by default. To enable and set the multicast directly connected rate
limiter, use the mls rate-limit multicast ipv4 connected command.
Router(config)# mls rate-limit multicast ipv4 connected pps [ packets-in-burst ]
This example shows how to rate limit the multicast packets to 30000 pps with a burst of 30:
Router(config)# mls rate-limit multicast ipv4 connected 30000 30
Note The ip-option keyword and the ip-option rate limiter are supported in PFC3B or PFC3BXL mode only.
This example shows how to set the rate limiters for the IPv4 multicast packets failing the uRPF check:
Router(config)# mls rate-limit multicast ipv4 non-rpf 100
This example shows how to rate limit the multicast FIB miss packets to 10000 pps with a burst of 10:
Router(config)# mls rate-limit multicast ipv4 fib-miss 10000 10
This example shows how to rate limit the partial shortcut flows to 20000 pps with a burst of 20 packets:
Router(config)# mls rate-limit multicast ipv4 partial 20000 20
This example shows how to rate limit the multicast packets to 30000 pps with a burst of 20:
Router(config)# mls rate-limit multicast ipv4 connected 30000 20
For more information on the mls rate-limit multicast ipv4 command, refer to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/122sx/cmdref/m1.htm#wp1499703
IPv6 Multicast
The IPv6 multicast rate limiter limits IPv6 multicast packets. There are seven IPv6 rate limiters:
• Connected: Directly connected source traffic
• Default-drop: * (*, G/m) SSM, * (*, G/m) SSM non-rpf
• Route-control: * (*, FF02::X/128)
• Secondary-drop: * (*, G/128) SPT threshold is infinity
• SG: * (S, G)RP-RPF post-switchover, * (*, FFx2/16)
• Starg-bridge: * (*, G/128) SM, * SM non-rpf traffic when (*, G) exists
• Starg-M-bridge: * (*, G/m) SM, * (*, FF/8), * SM non-rpf traffic when (*, G) doesn't exist
The IPv6 multicast traffic rate limiters can be configured using one of the following methods:
• Direct association of the rate limiters for a traffic class—Select a rate and associate the rate with a
rate limiter. This example shows how to pick a rate of 1000 pps and 20 packets per burst and
associate the rate with the default-drop rate limiter:
Router(config)# mls rate-limit multicast ipv6 default-drop 1000 20