06-26-2006 01:58 PM - edited 03-03-2019 01:08 PM
I'm getting packet drops in queues when there is no congestion. See the show policy-map below. You can packets dropping in the voice-control queue and its well below the 245k reserved for it and if you add up all of the bandwidth you will see I'm well below being congested. Anyone have any thoughts?
show policy-map int mult1
Multilink1
Service-policy output: WAN-EDGE-OUTPUT-SPRINT
Class-map: VOICE (match-any)
119770 packets, 17876400 bytes
2 minute offered rate 20000 bps, drop rate 0 bps
Match: ip dscp ef
119770 packets, 17876400 bytes
2 minute rate 20000 bps
Match: ip precedence 5
0 packets, 0 bytes
2 minute rate 0 bps
Queueing
Strict Priority
Output Queue: Conversation 264
Bandwidth 38 (%)
Bandwidth 1167 (kbps) Burst 29175 (Bytes)
(pkts matched/bytes matched) 119770/17876400
(total drops/bytes drops) 0/0
Class-map: VIDEO (match-any)
0 packets, 0 bytes
2 minute offered rate 0 bps, drop rate 0 bps
Match: ip dscp af41
0 packets, 0 bytes
2 minute rate 0 bps
Match: ip precedence 4
0 packets, 0 bytes
2 minute rate 0 bps
Queueing
Output Queue: Conversation 265
Bandwidth 1 (%)
Bandwidth 30 (kbps) Max Threshold 64 (packets)
(pkts matched/bytes matched) 0/0
(depth/total drops/no-buffer drops) 0/0/0
Class-map: VOICE-CONTROL (match-any)
49120 packets, 8822176 bytes
2 minute offered rate 36000 bps, drop rate 6000 bps
Match: ip dscp cs3
0 packets, 0 bytes
2 minute rate 0 bps
Match: ip precedence 3
49120 packets, 8822176 bytes
2 minute rate 36000 bps
Match: ip dscp af31
0 packets, 0 bytes
2 minute rate 0 bps
Queueing
Output Queue: Conversation 266
Bandwidth 8 (%)
Bandwidth 245 (kbps) Max Threshold 64 (packets)
(pkts matched/bytes matched) 49222/8840584
(depth/total drops/no-buffer drops) 0/296/0
Class-map: GOLD-DATA (match-any)
640868 packets, 142884152 bytes
2 minute offered rate 252000 bps, drop rate 0 bps
Match: ip dscp af23
640868 packets, 142884152 bytes
2 minute rate 252000 bps
Match: ip precedence 2
0 packets, 0 bytes
2 minute rate 0 bps
Queueing
Output Queue: Conversation 267
Bandwidth 28 (%)
Bandwidth 860 (kbps) Max Threshold 64 (packets)
(pkts matched/bytes matched) 642023/143096436
(depth/total drops/no-buffer drops) 0/126/0
Class-map: class-default (match-any)
317560 packets, 118077365 bytes
2 minute offered rate 136000 bps, drop rate 0 bps
Match: any
Queueing
Flow Based Fair Queueing
Maximum Number of Hashed Queues 256
(total queued/total drops/no-buffer drops) 0/31/0
exponential weight: 9
07-03-2006 06:49 AM
Check 'offered rate' in 'show policy-map int' includes all traffics in the the various classes even when there is no congestion.Also check for SNA performance on the interface.Add 'queue-limit 256' to class-default.This eliminates all packet drops with respect to a set of FTP jobs.
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