We have 2 T1's bundled in Mu1. The Mu1 interface is showing input, frame, and overrun errors, however the serial interfaces do not show any errors. I know there is a bug out there there that is close, however this is supposed to be fixed in our version of IOS (12.4(20)T6 and does not mention overrun errors. Users at the site are complaning of slow network connectvity, however I am not sure if this is related at this time. Would appreciate any assistance. See the output below, these commands were run approximately 15 min. after a show
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#show interfaces serial 0/0/0:1
Serial0/0/0:1 is up, line protocol is up
Hardware is GT96K Serial
Description: interface 1
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 4/255, rxload 26/255
Encapsulation PPP, LCP Open, multilink Open
Link is a member of Multilink bundle Multilink1, 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 00:33:56
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 158000 bits/sec, 40 packets/sec
30 second output rate 30000 bits/sec, 37 packets/sec
145959 packets input, 75329012 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
146651 packets output, 13751092 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
Timeslot(s) Used:1-24, SCC: 0, Transmitter delay is 0 flags
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#show interfaces serial 0/0/1:1
Serial0/0/1:1 is up, line protocol is up
Hardware is GT96K Serial
Description: interface 2
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 5/255, rxload 68/255
Encapsulation PPP, LCP Open, multilink Open
Link is a member of Multilink bundle Multilink1, 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 00:34:14
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 432000 bits/sec, 70 packets/sec
5 minute output rate 34000 bits/sec, 53 packets/sec
163634 packets input, 97245035 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
148335 packets output, 13962620 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
Timeslot(s) Used:1-24, SCC: 1, Transmitter delay is 0 flags
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mtcsc-rtr#show interfaces multilink 1
Multilink1 is up, line protocol is up
Hardware is multilink group interface
Description: mu1
Internet address is 162.9.254.50/30
MTU 1500 bytes, BW 3088 Kbit/sec, DLY 100000 usec,
reliability 240/255, txload 10/255, rxload 123/255
Encapsulation PPP, LCP Open, multilink Open
Open: IPCP, CDPCP, 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 00:34:44
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 1499000 bits/sec, 179 packets/sec
30 second output rate 123000 bits/sec, 158 packets/sec
309271 packets input, 168770263 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
14093 input errors, 0 CRC, 8388 frame, 5705 overrun, 0 ignored, 0 abort
301639 packets output, 28394340 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
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#show ppp multilink
Multilink1
Bundle name: mactr-rtr-1
Remote Endpoint Discriminator: [1] xxxxx
Local Endpoint Discriminator: [1] xxxxx
Bundle up for 15w6d, total bandwidth 3088, load 7/255
Receive buffer limit 24000 bytes, frag timeout 1000 ms
0/0 fragments/bytes in reassembly list
5792 lost fragments, 84537 reordered
8528/11521793 discarded fragments/bytes, 8528 lost received
0xDB80FD received sequence, 0x51757 sent sequence
Member links: 2 active, 0 inactive (max not set, min not set)
Se0/0/0:1, since 15w5d
Se0/0/1:1, since 7w1d
No inactive multilink interfaces
