I have recently moved my WCCP redirection at my remote locations from my 3750 switch stack to the WAN routers. I have noticed strange statistics when issuing the "show interface" command. Please take a look at the output below.
bos14rtrwn01#show int mult 1
Multilink1 is up, line protocol is up
Hardware is multilink group interface
Internet address is x.x.x.x/30
MTU 1500 bytes, BW 3072 Kbit, DLY 100000 usec,
reliability 255/255, txload 10/255, rxload 239/255
Encapsulation PPP, LCP Open, multilink Open
Open: IPCP, loopback not set
Keepalive set (10 sec)
DTR is pulsed for 2 seconds on reset
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 24w6d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 2179006
Queueing strategy: Class-based queueing
Output queue: 0/1000/64/2179006 (size/max total/threshold/drops)
Conversations 0/249/256 (active/max active/max total)
Reserved Conversations 3/3 (allocated/max allocated)
Available Bandwidth 1414 kilobits/sec
30 second input rate 6518000 bits/sec, 665 packets/sec
30 second output rate 121000 bits/sec, 105 packets/sec
1262906121 packets input, 1638232792 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
6 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1022086252 packets output, 925409604 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
Cisco IOS Software, 3800 Software (C3825-ADVIPSERVICESK9-M), Version 12.4(15)T3, RELEASE SOFTWARE (fc1)
Obviously this is a 3Mb circuit but my input rate indicates 6.5Mb. Something is off here. I have checked the Bug toolkit but did not find anything.
Anyone else having this issue?
I'm guessing you are using the gre-return (negotiated return) feature on your WAEs?
If so, you are probably seeing CSCsk44513 which causes your incoming interface counters to incorrectly increment. There isn't any current workaround, however it shouldn't affect anything outside the counters incorrectly incrementing.
Hope that helps,