[c-nsp] Rate-limit on Frame Relay T1

[Nick Voth]

Thanks Daniel,

Yes the egress policy is working fine. It's just the ingress rate-limit that
doesn't seem to work. It's definitely an issue with Frame Relay because I
have tons of point to point circuits that the rate-limit works for. Thanks
for the advice!

-Nick


> From: Daniel Holme <dan.holme at gmail.com>
> Date: Fri, 12 Mar 2010 09:20:00 +0000
> To: Nick Voth <nvoth at estreet.com>
> Cc: "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net>
> Subject: Re: [c-nsp] Rate-limit on Frame Relay T1
> 
> Personally, on a frame-relay interface, I would use frame-relay
> traffic shaping to achieve bandwidth control as it's integral to the
> FR config and you can apply it to the DLCI directly.
> 
> You're running PPP over the DLCI in your example, so you should
> probably do any rate-limiting at that level, ie, in the
> virtual-template.
> 
> Do you see your egress policy 'QoS-Out' matching any packets?
> 
> 
> --Dan
> 
> On Fri, Mar 12, 2010 at 1:49 AM, Nick Voth <nvoth at estreet.com> wrote:
>> Folks,
>> 
>> I'm trying to enable an input rate-limit on a Covad frame relay T1 and I'm
>> not getting anywhere. Once I apply the rate-limit rule to the serial0/0/0
>> interface and do a " show int serial0/0/0 rate-limit", I don't see any
>> conforming traffic:
>> 
>> Router#show int serial0/0/0 rate-limit
>> Serial0/0/0
>>  Input
>>    matches: all traffic
>>      params:  1376000 bps, 8000 limit, 8000 extended limit
>>      conformed 0 packets, 0 bytes; action: transmit
>>      exceeded 0 packets, 0 bytes; action: drop
>>      last packet: 2471205388ms ago, current burst: 0 bytes
>>      last cleared 00:46:01 ago, conformed 0 bps, exceeded 0 bps
>> 
>> The main part of the router config is below. If anyone has any idea why that
>> rate-limit rule isn't seeing any traffic, I'd be very appreciative.
>> 
>> Config:
>> !
>> !
>> class-map match-any VoIP-Control
>>  match access-group 101
>> !
>> !
>> policy-map QoS-Out
>>  class VoIP-Control
>>  priority 1300
>>  set ip dscp ef
>>  class class-default
>>  fair-queue 2048
>>  set ip dscp default
>> !
>> !
>> interface FastEthernet0/0
>>  ip address x.x.x.x 255.255.255.248
>>  duplex auto
>>  speed auto
>>  no keepalive
>> !
>> !
>> interface Serial0/0/0
>>  bandwidth 1536
>>  no ip address
>>  rate-limit input 1376000 8000 8000 conform-action transmit exceed-action
>> drop
>>  encapsulation frame-relay IETF
>>  no ip mroute-cache
>>  service-module t1 timeslots 1-24
>>  service-module t1 fdl both
>>  frame-relay lmi-type ansi
>>  max-reserved-bandwidth 95
>>  service-policy output QoS-Out
>> !
>> interface Serial0/0/0.1 point-to-point
>>  frame-relay interface-dlci 16 ppp Virtual-Template1
>> !
>> interface Virtual-Template1
>>  ip address negotiated
>>  ppp chap hostname 5411955 at bz8
>>  ppp chap password 7 14134B5954057E7A77
>>  ppp ipcp dns request
>>  ppp ipcp route default
>>  ppp ipcp address accept
>> !
>> !
>> access-list 101 permit ip any host y.y.y.y
>> 
>> Thanks very much,
>> 
>> -Nick Voth
>> 
>> 
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