I may be trying to compare apples to oranges but when I run a show interfaces serial 1/0 from my own router I get the following output, which shows a problem I'm having with input packets:
cisco#show interfaces serial 1/0
Serial1/0 is up, line protocol is up
Hardware is M1T-T3+ pa
Description: "PA-T3+ Serial 1/0"
Internet address is 192.168.0.1
MTU 4470 bytes, BW 44210 Kbit/sec, DLY 200 usec,
reliability 254/255, txload 31/255, rxload 123/255
Encapsulation PPP, LCP Open
Open: IPCP, crc 16, loopback not set
Keepalive set (10 sec)
Restart-Delay is 0 secs
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 1d01h
Input queue: 0/600/0/224 (size/max/drops/flushes); Total output drops: 456008
Queueing strategy: fifo
Output queue: 0/600 (size/max)
5 minute input rate 21434000 bits/sec, 2615 packets/sec
5 minute output rate 5528000 bits/sec, 2308 packets/sec
196662654 packets input, 665052509 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 parity
2162023 input errors, 2137254 CRC, 0 frame, 17207 overrun, 30 ignored, 7562 abort
169695963 packets output, 4241150293 bytes, 0 underruns
0 output errors, 0 applique, 3 interface resets
30 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
1006 carrier transitions
rxLOS inactive, rxLOF inactive, rxAIS inactive
txAIS inactive, rxRAI inactive, txRAI inactive
When I ask the ATT tech person to run this from the other side the output is different
show interfaces t3-2/3/0:4
Physical interface: t3-2/3/0:4, Enabled, Physical link is Up
Interface index: 896, SNMP ifIndex: 1605
Link-level type: PPP, MTU: 4474, Clocking: Internal, Speed: T3, Loopback: None, FCS: 16, Mode: C/Bit parity, Parent: coc1-2/3/0:4 Interface index 895
Device flags : Present Running
Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000
Link flags : Keepalives
Keepalive settings: Interval 10 seconds, Up-count 1, Down-count 3
Keepalive: Input: 8980 (00:00:05 ago), Output: 9237 (00:00:08 ago)
LCP state: Opened
NCP state: inet: Opened, inet6: Not-configured, iso: Not-configured, mpls: Not-configured
CHAP state: Closed
PAP state: Closed
CoS queues : 8 supported, 8 maximum usable queues
Last flapped : 2019-10-24 20:06:47 UTC (23:37:40 ago)
Input rate : 2880096 bps (1478 pps)
Output rate : 16160016 bps (1967 pps)
Active alarms : None
Active defects : None
Logical interface t3-2/3/0:4.0 (Index 74) (SNMP ifIndex 1606)
Description: MNX
Flags: Point-To-Point SNMP-Traps 0x4000 Encapsulation: PPP
Bandwidth: 44210kbps
Protocol inet, MTU: 4470
Flags: No-Redirects, Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 192.168.0.0/30, Local: 192.168.0.2, Broadcast: 192.168.0.3/30
Interface Admin Link Proto Local Remote
t3-2/3/0:4.0 up up inet 192.168.0.1/30
19:26-current:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
19:11-19:26:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
18:56-19:11:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
18:41-18:56:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
18:26-18:41:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
18:11-18:26:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
17:56-18:11:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
17:41-17:56:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
17:26-17:41:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
17:11-17:26:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
16:56-17:11:
LCV: 0, PCV: 0, CCV: 0, LES: 0, PES: 0, PSES: 0, CES: 0, CSES: 0, SEFS: 0, UAS: 0
16:41-16:56:
Oct 24 14:32:27 ipsin401me3 mib2d[1808]: SNMP_TRAP_LINK_UP: ifIndex 1606, ifAdminStatus up(1), ifOperStatus up(1), ifName t3-2/3/0:4.0
Oct 24 17:54:32 ipsin401me3 mib2d[1808]: SNMP_TRAP_LINK_DOWN: ifIndex 1606, ifAdminStatus up(1), ifOperStatus down(2), ifName t3-2/3/0:4.0
Oct 24 17:55:22 ipsin401me3 mib2d[1808]: SNMP_TRAP_LINK_UP: ifIndex 1606, ifAdminStatus up(1), ifOperStatus up(1), ifName t3-2/3/0:4.0
Oct 24 20:04:37 ipsin401me3 mib2d[1808]: SNMP_TRAP_LINK_DOWN: ifIndex 1606, ifAdminStatus up(1), ifOperStatus down(2), ifName t3-2/3/0:4.0
Oct 24 20:04:41 ipsin401me3 mib2d[1808]: SNMP_TRAP_LINK_UP: ifIndex 1606, ifAdminStatus up(1), ifOperStatus up(1), ifName t3-2/3/0:4.0
Oct 24 20:06:29 ipsin401me3 mib2d[1808]: SNMP_TRAP_LINK_DOWN: ifIndex 1606, ifAdminStatus up(1), ifOperStatus down(2), ifName t3-2/3/0:4.0
Oct 24 20:06:49 ipsin401me3 mib2d[1808]: SNMP_TRAP_LINK_UP: ifIndex 1606, ifAdminStatus up(1), ifOperStatus up(1), ifName t3-2/3/0:4.0
So what I'm not seeing is something like:
2162023 input errors, 2137254 CRC, 0 frame, 17207 overrun, 30 ignored, 7562 abort
from the ATT side router output. Is there a different command to get this extra detail? I'm sorry but I don't know the
version of IOS on the ATT router but I'm guessing its probably somewhat current.
