Hi guys
A cisco 1905 is experiencing output drops when I ping with tos0. If I ping with any other class, ip prec 3, 4 or 5 there are no packet drops. For ip prec 5 I have a LLQ configured, for IP 4 just CBWFQ as well as for ipp 3 and 0
For IPP3 and 0 I have WRED. Most traffic LAN goes to class default, in LAN interface there isnt a set precedence
policer, if I increase the WRED threshhold from 20 to 30, will it work?, should I do the same for class IPP3?
#sh int Serial0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is WIC MBRD Serial
Description: INTERFACE WAN PAHO
Internet address is 187.92.255.118/30
MTU 1500 bytes, BW 1984 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 173/255, rxload 37/255
Encapsulation PPP, LCP Open
REQsent: CDPCP
Open: IPCP, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:00:47
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 18
Queueing strategy: Class-based queueing
Output queue: 0/1000/0 (size/max total/drops)
30 second input rate 292000 bits/sec, 199 packets/sec
30 second output rate 1348000 bits/sec, 243 packets/sec
9071 packets input, 1502698 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
11041 packets output, 7540138 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
#sh int Serial0/0/0
Serial0/0/0 is up, line protocol is up
Hardware is WIC MBRD Serial
Description: INTERFACE WAN PAHO
Internet address is 187.92.255.118/30
MTU 1500 bytes, BW 1984 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 203/255, rxload 23/255
Encapsulation PPP, LCP Open
REQsent: CDPCP
Open: IPCP, loopback not set
Keepalive set (10 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:16:17
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 106
Queueing strategy: Class-based queueing
Output queue: 3/1000/0 (size/max total/drops)
30 second input rate 183000 bits/sec, 131 packets/sec
30 second output rate 1581000 bits/sec, 198 packets/sec
131712 packets input, 26795737 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
177099 packets output, 151447099 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
Show policy-map
Class-map: class-default (match-any)
183317 packets, 159085668 bytes
30 second offered rate 1511000 bps, drop rate 3000 bps
Match: any
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 2/114/0
(pkts output/bytes output) 183307/158995075
bandwidth 656 kbps
Exp-weight-constant: 9 (1/512)
Mean queue depth: 3 packets
class Transmitted Random drop Tail drop Minimum Maximum Mark
pkts/bytes pkts/bytes pkts/bytes thresh thresh prob
0 183307/158995075 114/103301 0/0 20 40 1/10
1 0/0 0/0 0/0 22 40 1/10
2 0/0 0/0 0/0 24 40 1/10
3 0/0 0/0 0/0 26 40 1/10
4 0/0 0/0 0/0 28 40 1/10
5 0/0 0/0 0/0 30 40 1/10
6 0/0 0/0 0/0 32 40 1/10
7 0/0 0/0 0/0 34 40 1/10
policy-map QoS_Out
class Mgmt_Out
bandwidth 16
set ip precedence 6
class IPP5_Out
priority 160
police rate 160000 burst 30000 peak-burst 60000
conform-action set-prec-transmit 5
exceed-action drop
violate-action drop
class IPP4_Out
bandwidth 640
set ip precedence 4
class IPP3_Out
bandwidth 512
random-detect
set ip precedence 3
class class-default
bandwidth 656
random-detect
set ip precedence 0
policy-map Shaping_Datos
class class-default
shape average 1984000
service-policy QoS_Out
