Leaflet

85
OL-11615-01
Console>(enable) set rate-limit l2pdu rate 1000
Layer 2 rate limiter for PDU rate set to 1000.
Console>(enable)
For more information on the set rate-limit l2pdu command, refer to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sw_8_5/cmd_ref/set_po
_r.htm#wp1597259
Layer 2 Protocol Tunneling
This rate limiter limits Layer 2 protocol tunneling packets, which include control PDUs, CDP, STP, and
VTP packets destined for the route processor.
Note Hardware-based rate limiters are supported only on Catalyst 6500 Series switches that are configured
with a Distributed Forwarding Card 3A (DFC3A) or the Policy Feature Card 3 (PFC3). The Catalyst
6500 Series switch cannot be in truncated mode. If you attempt to enable rate limiting while in truncated
mode, an error message is displayed.
This rate limiter is disabled by default. To enable or set the Layer 2 protocol tunneling rate limiter, use
the set rate-limit l2protocol-tunnel command. A rate value of 0 disables this rate limiter.
Console> (enable) set rate-limit l2protocol-tunnel enable
Console> (enable) set rate-limit l2protocol-tunnel rate
This example shows how to enable Layer 2 rate limiting for protocol tunnel-encapsulated PDUs:
Console>(enable) set rate-limit l2protocol-tunnel enable
Layer 2 rate limiter for l2protocol-tunnel enabled on the switch.
Console>(enable)
Console>(enable) set rate-limit l2protocol-tunnel rate 2000
Layer 2 rate limiter for l2protocol-tunnel rate set to 2000.
Console>(enable)
For more information on the set rate-limit l2protocol-tunnel command, refer to the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sw_8_5/cmd_ref/set_po
_r.htm#wp1597259
Multicast IGMP
This rate limiter limits the rate at which multicast IGMP packets are sent to route processor.
This rate limiter is disabled by default. To enable or set the multicast IGMP rate limiter, use the set
multicast ratelimit command. A rate value of 0 disables this rate limiter.
Console> (enable) set multicast ratelimit enable
Console> (enable) set multicast ratelimit rate rate
This example shows how to enable multicast IGMP rate limiting:
Console> (enable) set multicast ratelimit enable
Enabling Multicast Ratelimiting
Set a non-zero threshold rate to operationally enable multicast ratelimiting
Console> (enable)
Console> (enable) set multicast ratelimit rate 300
Multicast ratelimit watermark rate is set to 300 pps
Console> (enable)