02-06-2009 02:48 PM - last edited on 03-25-2019 07:47 PM by ciscomoderator
Hey guys,
Can anyone please explain what type of queing this is.
I placed this config on my 6513 routers.
class-map match-any C-VOICE-SIGNAL
description VoIP SIGNALLING
match ip dscp af31
match ip dscp cs3
class-map match-any C-VOICE
description VoIP TRAFFIC
match ip dscp ef
match protocol rtp audio
!
!
policy-map P-VOICE
class C-VOICE
priority percent 40
class C-VOICE-SIGNAL
bandwidth percent 5
class class-default
fair-queue
and applied it to several interfaces.
When I check the interface I see this as the queing strategy. I know LLQ, CBWFQ, WFQ etc but is "VIP-based fair queuing" another flavour of LLQ?
I just thought I add this to show you were I see the Queueing strategy: VIP-based fair queuing.
This is a show interface
Serial6/0/0/5:5 is up, line protocol is up
Hardware is CT3
Description:
Internet address is
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, crc 16, loopback not set
Keepalive set (10 sec)
LCP Open
Open: IPCP, CDPCP
Last input 00:00:02, output 00:00:02, output hang never
Last clearing of "show interface" counters 3w0d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 166
Queueing strategy: VIP-based fair queuing
Output queue: 0/40 (size/max)
5 minute input rate 1000 bits/sec, 1 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
8252744 packets input, 2674535206 bytes, 0 no buffer
Received 0 broadcasts (479808 IP multicast)
0 runts, 0 giants, 0 throttles
39 input errors, 4 CRC, 26 frame, 1 overrun, 0 ignored, 8 abort
9606256 packets output, 6260293022 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions no alarm present
Timeslot(s) Used: 1-24, Transmitter delay is 0 flags
non-inverted data
Solved! Go to Solution.
02-07-2009 04:13 AM
Hi, the VIP was the first cisco platform doing distributed processing.
Now, even if on a different architectures, they use the same term to indicate packet processing done by a line card processor rather than the central one.
So, there is nothing to worry about.
02-07-2009 04:13 AM
Hi, the VIP was the first cisco platform doing distributed processing.
Now, even if on a different architectures, they use the same term to indicate packet processing done by a line card processor rather than the central one.
So, there is nothing to worry about.
02-07-2009 03:39 PM
Thanks for the response. Am not worried cause I actually verified my config but was just surprised to see the VIP instead of CBWFQ under my interfaces. Curiosity got the best of me and I started researching what it was but still decided to have professionals such as yourself take a knife at it (You know Cisco's website documentations can go on and on about a simply explanation). Your explanation of the line card makes sense because I actually had a hunch its probably because of the platform I have the configuration on.
Thanks for the input.
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