RE: cos field in the frame

From: Braychuck Vitaliy (Vitaliy.Braychuck@incom.ua)
Date: Thu Feb 05 2009 - 09:47:08 ARST

Hi.

Yeah, you was right Pavel and your worst apprehensions about bsd machine are fulfilled.
Thank you for your advice.

Regards,
Vitalii

-----Original Message-----
From: bRAJ^UK wITALIJ
Sent: Thursday, February 05, 2009 10:13 AM
To: 'Pavel Bykov'
Cc: Sadiq Yakasai; ccielab@groupstudy.com
Subject: RE: cos field in the frame

Hi Pavel.

Rack1R2#sh run interf fa0/0.126
!
interface FastEthernet0/0.126
 encapsulation dot1Q 126
 ip address 173.1.0.2 255.255.255.0
 service-policy output T1
end

Ok, I will check it within a hour. Something tells me that you are right. )

Cheers,
Vitalii 

----
From: Pavel Bykov [mailto:slidersv@gmail.com] 
Sent: Thursday, February 05, 2009 10:01 AM
To: bRAJ^UK wITALIJ
Cc: Sadiq Yakasai; ccielab@groupstudy.com
Subject: Re: cos field in the frame

Please post
Rack1R2#sh run interface fa0/0.126

Also, It would be good to sniff what the switch is sending out, as BSD-BOX might be a culprit as well. Are you sure your BSD-BOX supports it? When you install VLANs on BSD, there could be a problem with sniffing VLANs.
Try insalling routers (or any device) instead of it, or sniff like that:
on switch2
mon sess 1 source int gi 1/0/23 both
mon sess 1 desct int gi x/x/x encap replicate

On Thu, Feb 5, 2009 at 8:45 AM, Braychuck Vitaliy <Vitaliy.Braychuck@incom.ua> wrote:
Hi, Sadiq.

   Fa0/0     gi1/0/2   gig1/0/23
[router2]------------------[switch2]--------------------[bsd-box]
   .2        173.1.0.0/24         .254

On router2:

Rack1R2#sh run | s ip sla
ip sla monitor 20
type jitter dest-ipaddr 173.1.0.254 dest-port 2542 source-ipaddr 173.1.0.2 source-port 2222 control disable num-packets 1
timeout 0
frequency 3
ip sla monitor schedule 20 life forever start-time now

Rack1R2#sh run class-map
!
class-map match-all SLA2
match access-group name SLA2
!
end

Rack1R2#sh run policy-map
!
policy-map T1
class SLA2
set cos 4
!
End

Rack1R2#sh ip access-lists SLA2
Extended IP access list SLA2
 10 permit udp host 173.1.0.2 eq 2222 host 173.1.0.254 eq 2542 (23290 matches)

Rack1R2#sh policy-map interface fa0/0.126
FastEthernet0/0.126

Service-policy output: T1

 Class-map: SLA2 (match-all)
  19816 packets, 1545648 bytes
  5 minute offered rate 0 bps, drop rate 0 bps
  Match: access-group name SLA2
  QoS Set
   cos 4
    Packets marked 19816

 Class-map: class-default (match-any)
  6076 packets, 593956 bytes
  5 minute offered rate 0 bps, drop rate 0 bps
  Match: any

On the switch (as I said before mls qos is enabled globally):

Rack1SW2#sh run interf gig1/0/2
!
interface GigabitEthernet1/0/2
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
mls qos trust cos
spanning-tree portfast
end

Kindly,
Vitalii Braichuk
---

From: Sadiq Yakasai [mailto:sadiqtanko@gmail.com]
Sent: Wednesday, February 04, 2009 6:31 PM
To: bRAJ^UK wITALIJ
Cc: ccielab@groupstudy.com
Subject: Re: cos field in the frame

How about some config on the switch and router? How do you know you are sending frames from the router with a cos of 4?

Blogs and organic groups at http://www.ccie.net

This archive was generated by hypermail 2.1.4 : Sun Mar 01 2009 - 09:44:10 ARST