Comments on: Help understanding interface statistics? http://www.networkingblog.in/help-understanding-interface-statistics-2615 Cisco Netpro Blog Wed, 23 Jun 2010 06:07:14 +0000 hourly 1 http://wordpress.org/?v=3.0 By: karan http://www.networkingblog.in/help-understanding-interface-statistics-2615/comment-page-1#comment-1838 karan Wed, 10 Mar 2010 06:25:00 +0000 http://www.networkingblog.in/?p=2615#comment-1838 You definetely have issues. I'd have your telco do intrusive testing on this circuit. Also, double check with them and make sure the circuit is provisioned as your router is config'd: - ESF - B8ZS - Make sure they are providing clock. You definetely have issues. I’d have your telco do intrusive testing on this circuit.
Also, double check with them and make sure the circuit is provisioned as your router is config’d:
- ESF
- B8ZS
- Make sure they are providing clock.

]]> By: karan http://www.networkingblog.in/help-understanding-interface-statistics-2615/comment-page-1#comment-1837 karan Wed, 10 Mar 2010 06:23:59 +0000 http://www.networkingblog.in/?p=2615#comment-1837 Looks like you have a noisy link. The link explains each counters. http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_command_reference_chapter09186a00800874c4.html#wp1020497 Looks like you have a noisy link.
The link explains each counters.
http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_command_reference_chapter09186a00800874c4.html#wp1020497

]]> By: karan http://www.networkingblog.in/help-understanding-interface-statistics-2615/comment-page-1#comment-1836 karan Wed, 10 Mar 2010 06:23:13 +0000 http://www.networkingblog.in/?p=2615#comment-1836 Due to message length limit, here is the remote router info. remote router#show interface serial0 Serial0 is up, line protocol is up Hardware is PQUICC with Fractional T1 CSU/DSU Description: WAN to Zeeland Internet address is 192.168.33.2/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set Keepalive set (10 sec) LCP Open Open: IPCP, CDPCP Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters 04:42:59 Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 70 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/8/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) Available Bandwidth 1158 kilobits/sec 5 minute input rate 1000 bits/sec, 14 packets/sec 5 minute output rate 1000 bits/sec, 14 packets/sec 211635 packets input, 27433443 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 212962 packets output, 18847262 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 output buffer failures, 0 output buffers swapped out 2 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up remote router#show service-module serial0 Module type is T1/fractional Hardware revision is 0.96, Software revision is 0.2, Image checksum is 0x73D70058, Protocol revision is 0.1 Receiver has no alarms. Framing is ESF, Line Code is B8ZS, Current clock source is line, Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536 Kbits/sec. Last module self-test (done at startup): Passed Last clearing of alarm counters 04:43:37 loss of signal : 0, loss of frame : 0, AIS alarm : 0, Remote alarm : 1, last occurred 01:41:24 Module access errors : 0, Total Data (last 96 15 minute intervals): 14999 Line Code Violations, 7 Path Code Violations 0 Slip Secs, 30 Fr Loss Secs, 7007 Line Err Secs, 1373 Degraded Mins 6972 Errored Secs, 0 Bursty Err Secs, 35 Severely Err Secs, 0 Unavail Secs Data in current interval (412 seconds elapsed): 0 Line Code Violations, 0 Path Code Violations 0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins 0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs I'm mainly concerned about QoS on this line due to running VoIP between the sites. Pointers? Guidance? Much appreciated. Due to message length limit, here is the remote router info.
remote router#show interface serial0
Serial0 is up, line protocol is up
Hardware is PQUICC with Fractional T1 CSU/DSU
Description: WAN to Zeeland
Internet address is 192.168.33.2/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set
Keepalive set (10 sec)
LCP Open
Open: IPCP, CDPCP
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of “show interface” counters 04:42:59
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 70
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/8/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1158 kilobits/sec
5 minute input rate 1000 bits/sec, 14 packets/sec
5 minute output rate 1000 bits/sec, 14 packets/sec
211635 packets input, 27433443 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
212962 packets output, 18847262 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
remote router#show service-module serial0
Module type is T1/fractional
Hardware revision is 0.96, Software revision is 0.2,
Image checksum is 0x73D70058, Protocol revision is 0.1
Receiver has no alarms.
Framing is ESF, Line Code is B8ZS, Current clock source is line,
Fraction has 24 timeslots (64 Kbits/sec each), Net bandwidth is 1536 Kbits/sec.
Last module self-test (done at startup): Passed
Last clearing of alarm counters 04:43:37
loss of signal : 0,
loss of frame : 0,
AIS alarm : 0,
Remote alarm : 1, last occurred 01:41:24
Module access errors : 0,
Total Data (last 96 15 minute intervals):
14999 Line Code Violations, 7 Path Code Violations
0 Slip Secs, 30 Fr Loss Secs, 7007 Line Err Secs, 1373 Degraded Mins
6972 Errored Secs, 0 Bursty Err Secs, 35 Severely Err Secs, 0 Unavail Secs
Data in current interval (412 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
I’m mainly concerned about QoS on this line due to running VoIP between the sites.

Pointers? Guidance? Much appreciated.

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