[c-nsp] ip multicast rate-limit

[Hank Nussbacher]

On Tue, 28 Mar 2006, Church, Chuck wrote:

7600 w/ SUP720/PFC3BXL   -Hank

> 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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