Re: Class-Based Marking Verification -> AT DESTINATION

From: Niche (jackyliu419@gmail.com)
Date: Wed Oct 05 2005 - 22:38:26 GMT-3

Hi there,

Just a suggestion, use an access-list and check the log counter on the
destination interface works for you?

Cheers~
Jacky

On 10/6/05, Dennis J. Hartmann <dennisjhartmann@hotmail.com> wrote:
>
> Does anyone know what debug command I can use to verify packet marking
> at the destination of the traffic?
>
> The policy is definetely working at the source, but the Networkers 2005
> CCIE R&S Techtorial mentioned that a debug can be run at the destination
> to
> verify that the packet was being marked.
>
> The policy is definetely working (below), but a debug ip packet detail
> does not decode the ToS byte value.... (the routers are connected by a
> back-to-back serial cable).
>
> R2#show policy-m int
> Serial1/2
>
> Service-policy output: ping
>
> Class-map: ping (match-all)
> 30 packets, 3120 bytes
> 5 minute offered rate 0 bps, drop rate 0 bps
> Match: access-group name ping
> QoS Set
> dscp ef
> Packets marked 30
>
> Class-map: class-default (match-any)
> 228 packets, 14965 bytes
> 5 minute offered rate 0 bps, drop rate 0 bps
> Match: any
>
> R2#ping 180.40.7.3 <http://180.40.7.3> source 2.2.2.2 <http://2.2.2.2>
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 180.40.7.3 <http://180.40.7.3>, timeout
> is 2 seconds:
> Packet sent with a source address of 2.2.2.2 <http://2.2.2.2>
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/32 ms
> R2#
>
>
> R3#sh debug
> Generic IP:
> IP packet debugging is on (detailed) for access list 2
>
> R3#
> *Mar 1 01:43:56.959: IP: tableid=0, s=2.2.2.2 <http://2.2.2.2>(Serial1/2),
d=
> 180.40.7.3 <http://180.40.7.3>
> (Serial
> 1/2), routed via RIB
> *Mar 1 01:43:56.959: IP: s=2.2.2.2 <http://2.2.2.2> (Serial1/2), d=
> 180.40.7.3 <http://180.40.7.3> (Serial1/2),
> len 1
> 00, rcvd 3
> *Mar 1 01:43:56.959: ICMP type=8, code=0
> *Mar 1 01:43:56.959: IP: tableid=0, s=180.40.7.3 <http://180.40.7.3>(local),
d=
> 2.2.2.2 <http://2.2.2.2>
> (Serial1/2)
> , routed via FIB
> *Mar 1 01:43:56.992: IP: tableid=0, s=2.2.2.2 <http://2.2.2.2>(Serial1/2),
d=
> 180.40.7.3 <http://180.40.7.3>
> (Serial
> 1/2), routed via RIB
> *Mar 1 01:43:56.992: IP: s=2.2.2.2 <http://2.2.2.2> (Serial1/2), d=
> 180.40.7.3 <http://180.40.7.3> (Serial1/2),
> len 1
> 00, rcvd 3
> *Mar 1 01:43:56.992: ICMP type=8, code=0
> *Mar 1 01:43:56.992: IP: tableid=0, s=180.40.7.3 <http://180.40.7.3>(local),
d=
> 2.2.2.2 <http://2.2.2.2>
> (Serial1/2)
> , routed via FIB
> *Mar 1 01:43:57.024: IP: tableid=0, s=2.2.2.2 <http://2.2.2.2>(Serial1/2),
d=
> 180.40.7.3 <http://180.40.7.3>
> (Serial
> 1/2), routed via RIB
> *Mar 1 01:43:57.024: IP: s=2.2.2.2 <http://2.2.2.2> (Serial1/2), d=
> 180.40.7.3 <http://180.40.7.3> (Serial1/2),
> len 1
> 00, rcvd 3
> *Mar 1 01:43:57.024: ICMP type=8, code=0
> *Mar 1 01:43:57.024: IP: tableid=0, s=180.40.7.3 <http://180.40.7.3>(local),
d=
> 2.2.2.2 <http://2.2.2.2>
> (Serial1/
> R3#2), routed via FIB
> *Mar 1 01:43:57.056: IP: tableid=0, s=2.2.2.2 <http://2.2.2.2>(Serial1/2),
d=
> 180.40.7.3 <http://180.40.7.3>
> (Serial
> 1/2), routed via RIB
> *Mar 1 01:43:57.056: IP: s=2.2.2.2 <http://2.2.2.2> (Serial1/2), d=
> 180.40.7.3 <http://180.40.7.3> (Serial1/2),
> len 1
> 00, rcvd 3
> *Mar 1 01:43:57.056: ICMP type=8, code=0
> *Mar 1 01:43:57.056: IP: tableid=0, s=180.40.7.3 <http://180.40.7.3>(local),
d=
> 2.2.2.2 <http://2.2.2.2>
> (Serial1/2)
> , routed via FIB
> *Mar 1 01:43:57.088: IP: tableid=0, s=2.2.2.2 <http://2.2.2.2>(Serial1/2),
d=
> 180.40.7.3 <http://180.40.7.3>
> (Serial
> 1/2), routed via RIB
> *Mar 1 01:43:57.088: IP: s=2.2.2.2 <http://2.2.2.2> (Serial1/2), d=
> 180.40.7.3 <http://180.40.7.3> (Serial1/2),
> len 1
> 00, rcvd 3
> *Mar 1 01:43:57.088: ICMP type=8, code=0
> *Mar 1 01:43:57.092: IP: tableid=0, s=180.40.7.3 <http://180.40.7.3>(local),
d=
> 2.2.2.2 <http://2.2.2.2>
> (Serial1/2)
> , routed via FIB
> R3#
>
> Sincerely,
>
>
>
> Dennis J. Hartmann
>
> White Pine Communications
>
> dh8@pobox.com
>
> CCSI#23402 / CCVP / CCIP / CCNP
>
> Cisco Optical, VPN & IDS Specialist
>
> MCSE
>
> _______________________________________________________________________
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