Re: multicast rate-limiting

From: Bajo (bajoalex@gmail.com)
Date: Fri Sep 15 2006 - 04:14:29 ART


Hi Broadway,

Am not sure the ping (with source, size, ...etc) approach will work (u'r
sending unicast). Rate limit is based on (S, G).

A good reference on rate-limit:
ftp://ftpeng.cisco.com/ipmulticast/config-notes/multicast-rate-limit.txt

Start "deb ip packe" and let the interface join that group.
Also, the "show ip mroute int e0/0" shou;d show u if the rate-limit is
applied.

interface FastEthernet0/1
 ip address 162.1.3.3 255.255.255.0
 ip pim sparse-dense-mode
 ip multicast rate-limit out group-list grp-224 100
 ip igmp join-group 224.1.1.1
 duplex auto

R3(config)#int f0/1
R3(config-if)#sh
R3(config-if)#no sh
R3(config-if)#end

R3#
*Mar 12 16:45:15.778: %SEC-6-IPACCESSLOGS: list grp-224 permitted
224.1.1.11 packet

R3#sh ip access-l
Standard IP access list grp-224
    10 permit 224.1.1.1 log (1 match)

R3#sh ip mro int f0/1
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
       L - Local, P - Pruned, R - RP-bit set, F - Register flag,
       T - SPT-bit set, J - Join SPT, M - MSDP created entry,
       X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
       U - URD, I - Received Source Specific Host Report, Z - Multicast
Tunnel
       Y - Joined MDT-data group, y - Sending to MDT-data group
Outgoing interface flags: H - Hardware switched
 Timers: Uptime/Expires
 Interface state: Interface, Next-Hop or VCD, State/Mode

(*, 224.1.1.1), 00:08:04/00:02:41, RP 162.1.3.3, flags: SJCL
  Incoming interface: Null, RPF nbr 0.0.0.0
  Outgoing interface list:
    FastEthernet0/1, Forward/Sparse-Dense, 00:08:04/00:02:40, limit 100
kbps <+++++++
    Serial0/0, Forward/Sparse-Dense, 00:08:04/00:02:41, limit 750 kbps

(*, 224.0.1.39), 00:08:04/stopped, RP 0.0.0.0, flags: DCL
  Incoming interface: Null, RPF nbr 0.0.0.0
  Outgoing interface list:
    Loopback0, Forward/Sparse-Dense, 00:08:05/00:00:00
    FastEthernet0/1, Forward/Sparse-Dense, 00:08:05/00:00:00
    Serial0/0, Forward/Sparse-Dense, 00:08:05/00:00:00, limit 750 kbps
    FastEthernet0/0, Forward/Sparse-Dense, 00:08:05/00:00:00

(150.1.3.3, 224.0.1.39), 00:07:20/00:02:39, flags: LT
  Incoming interface: Loopback0, RPF nbr 0.0.0.0
  Outgoing interface list:
    FastEthernet0/0, Forward/Sparse-Dense, 00:07:20/00:00:00
    Serial0/0, Forward/Sparse-Dense, 00:07:20/00:00:00, limit 750 kbps
    FastEthernet0/1, Forward/Sparse-Dense, 00:07:24/00:00:00

(*, 224.0.1.40), 00:08:09/stopped, RP 0.0.0.0, flags: DCL
  Incoming interface: Null, RPF nbr 0.0.0.0
  Outgoing interface list:
    FastEthernet0/1, Forward/Sparse-Dense, 00:08:09/00:00:00

R3#

On 9/14/06, midatlanticnet@gmail.com <midatlanticnet@gmail.com> wrote:
>
> Group,
>
> I am trying to rate-limit multicast traffic to 224.1.1.1 on eth 0/0 to
> 100K. I am configuring the interface this way:
>
> ip multicast rate-limit out group-list 30 100
>
> How can I verify that the rate-limiting is working. When I ping 224.1.1.1from that router, I do not see any rate-limiting in the mroute table.
>
> -Broadway
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>

-- 
Kind Regards,

Bajo



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