[c-nsp] ip multicast rate-limit

[Church, Chuck]

Is it possible it's just not supported with the Sup you're using, or the
interface itself?  You're dealing with a 7600/6500, right?  It might
require a 720, or an OSM/Flexwan/SIP... 


Chuck Church
Network Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services
Enterprise Network Engineering
Home Office - 864-335-9473 
Cell - 864-266-3978
cchurch at netcogov.com

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Hank Nussbacher
Sent: Tuesday, March 28, 2006 2:36 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] ip multicast rate-limit

I am wondering what is up with the "ip multicast rate-limit" command.  A

few gotcha's from Cisco:

a) doesn't work on 12.2(18)SXE4:

petach-tikva-gp(config-if)#ip multicast ?
   boundary       Boundary for administratively scoped multicast
addresses
   helper-map     Broadcast to Multicast map OR Multicast to ip-address
map
   netflow        NetFlow accounting for multicast
   rate-limit     Rate limit multicast data packets
   tagswitch      Enable IP Multicast Tagswitching
   ttl-threshold  TTL threshold for multicast packets

petach-tikva-gp(config-if)#ip multicast rate-limit ?
   in   Rate limit incoming packets
   out  Rate limit outgoing packets

petach-tikva-gp(config-if)#ip multicast rate-limit in 40000
  "ip multicast rate-limit" command is not supported

Was introduced in 11.0 so should be available and the CLI shows it as 
available.  No altrernate command suggested.  See below.

b) On:
<http://www.cisco.com/en/US/products/ps6350/products_command_reference_b
ook09186a008042def5.html>
the left hand menu shows a link for "IP Multicast Commands: ip multicast

rate-limit through ip urd", which is a mistake and should be
'route-limit' 
to 'urd'.

c) On:
<http://www.cisco.com/en/US/products/hw/routers/ps368/products_command_r
eference_chapter09186a0080172751.html>
it lists the command for 12.2SX as being "mls ip multicast rate-limit"
yet 
the link to the actual page shows the command as being now "mls
rate-limit 
multicast ipv4..."  Looks like someone has been playing fast and loose
with 
the CLI syntax and changing their minds every few months :-)

d) Following the multicast trail, I see the mls command has an igmp
option 
such as "mls rate-limit multicast ipv4 igmp" for rate limiting igmp pps,

yet 12.2(18)SXE4  one can still do
petach-tikva-gp(config-if)#ip igmp limit ?
   <1-64000>  Max Allowed State on this interface
Couldn't Cisco put all multicast limiters in one spot in the CLI?  Can't

Cisco indicate a command has been deprecated and what the new command 
should be?  Can't Cisco check their documentation?

Thanks,
Hank

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