From: Narbik Kocharians (narbikk@gmail.com)
Date: Tue Mar 13 2007 - 18:19:26 ART
Well i think by default type 0 messages go out every 6th cycle (Keep alive
cycles) and when and if the router gets the dlci info, and if certain
configurations are there (Like if P2P is not configured, if there is an IP
address configured, and so on) then it will send an inverse-arp out of each
DLCI trying to do the mapping for you, so if you decrease the freguency of
the cycles, that might help, it's worth to try and see, this can be done
using the "frame-relay lmi-n931dte interface command followed by the number
that specifies the number of cycles".
Int s0/0/0
keep 2
frame lmi-n931dte 2
On 2/27/07, Andre Serrao <andreserrao@gmail.com> wrote:
>
> Hey GS:
>
> I was wondering if there is any trick to have frame-relay inverse-arp to
> map
> L3 address into L2 addresses in a fast way.
>
> I tried shut no shut, but it still takes at least 10 seconds until it
> finally works.
> Tried changing keepalive from 10 to 2 seconds, just to see if it would
> make
> any difference. However, correct me if I am wrong, keepalive timer only
> affects lmi, not frame-relay inarp.
>
> Any ideas to speed it up?
>
> Then, I am trying to understand the datagram size on the debug output. Is
> this something configurable?
>
>
>
> Thanks,
> Andre
>
>
> Rack1R3#debug frame-relay packet
> Frame Relay packet debugging is on
> Rack1R3#
> *Mar 2 10:05:19.011: Serial0/1: broadcast search
> *Mar 2 10:05:19.011: Serial0/1:encaps failed on broadcast for link 7(IP)
> Rack1R3#
> *Mar 2 10:05:22.775: Serial0/1: broadcast search
> *Mar 2 10:05:22.775: Serial0/1:encaps failed on broadcast for link 7(IP)
> Rack1R3#
> *Mar 2 10:05:26.203: Serial0/1: broadcast search
> *Mar 2 10:05:26.203: Serial0/1:encaps failed on broadcast for link 7(IP)
> *Mar 2 10:05:26.615: Serial0/1:Encaps failed--no map entry link 7(IP)
> Rack1R3#
> *Mar 2 10:05:28.167: Serial0/1:Encaps failed--no map entry link 7(IP)
> *Mar 2 10:05:28.615: Serial0/1:Encaps failed--no map entry link 7(IP)
> Rack1R3#
> *Mar 2 10:05:30.115: Serial0/1: broadcast search
> *Mar 2 10:05:30.115: Serial0/1:encaps failed on broadcast for link 7(IP)
> Rack1R3#
> Rack1R3#
> *Mar 2 10:05:32.615: Serial0/1:Encaps failed--no map entry link 7(IP)
> Rack1R3#
> *Mar 2 10:05:33.783: Serial0/1: broadcast search
> *Mar 2 10:05:33.783: Serial0/1:encaps failed on broadcast for link 7(IP)
> *Mar 2 10:05:34.079: Serial0/0.302: broadcast search
> *Mar 2 10:05:34.083: Serial0/0.302(o): dlci 302(0x48E1), NLPID 0x3CC(IP),
> datagramsize 116
> *Mar 2 10:05:34.095: broadcast dequeue
> *Mar 2 10:05:34.095: Serial0/0.302(o):Pkt sent on dlci 302(0x48E1),
> NLPID 0x3CC(IP), datagramsize 116
> Rack1R3#
> *Mar 2 10:05:37.295: Serial0/1: broadcast search
> *Mar 2 10:05:37.295: Serial0/1:encaps failed on broadcast for link 7(IP)
> *Mar 2 10:05:37.635: Serial0/0(i): dlci 302(0x48E1), NLPID 0x3CC(IP),
> datagramsize 316
> Rack1R3#
> *Mar 2 10:05:39.279: Serial0/0.302: broadcast search
> *Mar 2 10:05:39.279: Serial0/0.302(o): dlci 302(0x48E1), NLPID 0x3CC(IP),
> datagramsize 58
> *Mar 2 10:05:39.295: broadcast dequeue
> *Mar 2 10:05:39.295: Serial0/0.302(o):Pkt sent on dlci 302(0x48E1),
> NLPID 0x3CC(IP), datagramsize 58
> Rack1R3#
> *Mar 2 10:05:40.615: Serial0/1:Encaps failed--no map entry link 7(IP)
> *Mar 2 10:05:41.111: Serial0/1: broadcast search
> *Mar 2 10:05:41.111: Serial0/1:encaps failed on broadcast for link 7(IP)
> Rack1R3#
> *Mar 2 10:05:45.031: Serial0/1: broadcast search
> *Mar 2 10:05:45.031: Serial0/1:encaps failed on broadcast for link 7(IP)
> *Mar 2 10:05:45.159: Serial0/0.302(o): dlci 302(0x48E1), NLPID 0x3CC(IP),
> datagramsize 82
> *Mar 2 10:05:45.207: Serial0/0.302: Broadcast on DLCI 302 link 65(CDP)
> *Mar 2 10:05:45.207: Serial0/0.302(o): dlci 302(0x48E1), pkt encaps
> 0x0300
> 0x8000 0x0000 0x2000(CDP), datagramsize 353
> *Mar 2 10:05:45.299: broadcast dequeue
> *Mar 2 10:05:45.299: Serial0/0.302(o):Pkt sent on dlci 302(0x48E1), pkt
> encaps 0x300 0x8000 0x0 0x2000(CDP), datagramsize 353
>
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-- Narbik Kocharians CCIE# 12410 (R&S, SP, Security) CCSI# 30832 Network Learning, Inc. (CCIE class Instructor) www.ccbootcamp.com (CCIE Training)
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