From: Joseph Brunner (joe@affirmedsystems.com)
Date: Fri Aug 24 2007 - 21:44:01 ART
Thank you...
Both. The link and this debug I guess will help me sans google.
-Joe
-----Original Message-----
From: Gregory Gombas [mailto:ggombas@gmail.com]
Sent: Friday, August 24, 2007 8:35 PM
To: Joseph Brunner
Cc: ccielab@groupstudy.com
Subject: Re: what is in there...(ETHERTYPES)
You won't find PVST+ under there because it uses a snap header and LSAP
0xAAAA
From a previous post:
To find the frame types, run a debug of spanning tree and the frame type can
be located in there, See below:
CAT1#debug spanning-tree all
19:23:45: STP: VLAN0060 rx BPDU: config protocol = ieee, packet from
FastEthernet0/14 , linktype SSTP , enctype 3, encsize 22
19:23:45: STP: enc 01 00 0C CC CC CD 00 0B FD AF 99 8E 00 32 AA AA 03 00 00
0C 01 0B
19:23:45: STP: Data
0000000000803C000BFDAF998000000000803C000BFDAF9980800E0000140002000F00
19:23:45: STP: VLAN0060 Fa0/14:0000 00 00 00 803C000BFDAF9980 00000000
803C000BFDAF9980 800E 0000 1400 0200 0F00
19:23:45: STP(60) port Fa0/14 supersedes 0
19:23:45: STP: opt: VLAN0060: get ports: chunk 0 allocated
19:23:45: STP: opt: VLAN0060: freeing opt chunk 0
19:23:45: STP SW: PROC RX: 0100.0ccc.cccd<-000b.fdaf.998e type/len 0032
19:23:45: encap SNAP linktype sstp vlan 700 len 64 on v700 Fa0/14
19:23:45: AA AA 03 00000C 010B SSTP
19:23:45: CFG P:0000 V:00 T:00 F:00 R:82BC 000b.fdaf.9980 00000000
19:23:45: B:82BC 000b.fdaf.9980 80.0E A:0000 M:1400 H:0200 F:0F00
19:23:45: T:0000 L:0002 D:02BC
Look for the encapsulation, it says SNAP..... AA AA
On 8/24/07, Joseph Brunner <joe@affirmedsystems.com> wrote:
> "only what you take with you"
>
>
>
> Rack13R4(config)#access-list 101 permit ip any any precedence ?
>
> <0-7> Precedence value
>
> critical Match packets with critical precedence (5)
>
> flash Match packets with flash precedence (3)
>
> flash-override Match packets with flash override precedence (4)
>
> immediate Match packets with immediate precedence (2)
>
> internet Match packets with internetwork control precedence (6)
>
> network Match packets with network control precedence (7)
>
> priority Match packets with priority precedence (1)
>
> routine Match packets with routine precedence (0)
>
>
>
>
>
> While this works great to remember IP PREC number to name (for those
> annoying wred configs) can anyone give me a similar helpful way to find
out
> the ethertype of IP, ARP, PVST+, etc. from either capture/deny of traffic
on
> a router/switch, etc.
>
>
>
> Thanks,
>
>
>
> Joe
>
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