06-05-2006 12:02 AM - edited 03-03-2019 12:53 PM
slot0:c7200-ds-mz.121-18.bin
============================
FastEthernet2/1 is up, line protocol is up
Hardware is i82543 (Livengood), address is 0003.31da.3439 (bia 0003.31da.3439)
Description: Core Connect IP only
Internet address is 10.192.135.36/27
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 1w0d
Input queue: 6/75/467587/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue :0/40 (size/max)
5 minute input rate 652000 bits/sec, 244 packets/sec
5 minute output rate 276000 bits/sec, 322 packets/sec
109320553 packets input, 1637571015 bytes
Received 0 broadcasts, 0 runts, 0 giants, 445166 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
134931783 packets output, 3817728594 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
======================
This interface is connected to a CAT 3750 Gi1/0/22 and it's counters are fine:
GigabitEthernet1/0/22 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 000d.293b.7a96 (bia 000d.293b.7a96)
Description: IP Access Link to CCF7206 Fa2/1
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:31, output 00:00:02, output hang never
Last clearing of "show interface" counters never
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 302000 bits/sec, 279 packets/sec
5 minute output rate 631000 bits/sec, 213 packets/sec
2645840927 packets input, 196628550 bytes, 0 no buffer
Received 1503641 broadcasts (0 multicast)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 1487147 multicast, 0 pause input
0 input packets with dribble condition detected
1982685323 packets output, 795701522 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
06-05-2006 12:14 AM
Hi Friend,
The throttles counter increments when a system buffer is available, but the interface already has the maximum number of packets waiting to be processed in the input hold queue The router temporarily disables the interface to give the interface time to catch up and process the already enqueued packets.
You can troubleshoot throttles by determining the root cause of why a high number of packets are being process switched.
HTH, if yes please rate the post.
Ankur
06-05-2006 04:13 AM
Ankur,
1. Which information did you look at to say that a high number of packets are process switced?
2. Can you give some pointers / links . urls where I can find out procedure to troubleshoot why a high number of packets are being process switched.
06-05-2006 04:20 AM
Hi Friend,
Throttles could be one of the results of process switched which I tried to put in my previous post but looking at the output which you posted cannot be sure if the packtes are process switched.
Can you post the output of "show interfaces switching " from the interface where you see high throttles counters?
Regards,
Ankur
06-05-2006 05:39 AM
I am yet to get the output of show interface fa2/1 switching:
=====================================================
========================
Partial config for fa2/1:
========================
interface FastEthernet2/1
description Core Connect IP only
ip address 10.192.135.36 255.255.255.224
ip access-group 109 in
ip access-group blockblaster-SH-1 out
no ip unreachables
ip route-cache policy
ip route-cache flow
ip ospf cost 20
ip ospf priority 100
ip policy route-map from-iims
speed 100
full-duplex
====================================================
route-map from-iims permit 10
match ip address 166
set ip next-hop 10.255.194.2
!
route-map from-iims permit 20
match ip address 167
set ip next-hop 10.255.194.2
!
route-map from-iims permit 50
match ip address 170
set ip next-hop 10.255.194.2
!
route-map from-iims permit 70
match ip address 172
set ip next-hop 10.255.194.2
!
route-map from-iims permit 80
match ip address 173
set ip next-hop 10.255.194.2
!
route-map from-iims permit 90
match ip address 174
set ip next-hop 10.255.194.2
!
route-map from-iims permit 110
match ip address 176
set ip next-hop 10.255.194.2
!
route-map from-iims permit 130
match ip address 179
set ip next-hop 10.255.194.2
!
route-map from-iims permit 140
match ip address 180
set ip next-hop 10.255.194.2
!
route-map from-iims permit 150
match ip address 181
set ip next-hop 10.255.194.2
!
route-map from-iims permit 160
match ip address 182
set ip next-hop 10.255.194.2
!
route-map from-iims permit 170
match ip address 183
set ip next-hop 10.255.194.2
!
route-map from-iims permit 180
match ip address 184
set ip next-hop 10.255.194.2
!
route-map from-iims permit 190
match ip address 185
set ip next-hop 10.255.194.2
!
====================================================
access-list 109 deny ip host 48.51.48.48 any
access-list 109 deny ip any host 48.51.48.48
access-list 109 permit ip any any
06-05-2006 06:51 AM
Hi Friend,
I see some route map configured can you please confirm if your cpu utilization is also high?
You can check that from "sh proc cpu" and if possible paste the output.
Have you disabled CEF by anychance on your router?
Regards,
Ankur
06-05-2006 05:01 PM
06-05-2006 08:30 PM
CCF7206#show interface fastethernet 2/1 switching
FastEthernet2/1 Core Connect IP only
Throttle count 445579
Drops RP 468012 SP 0
SPD Flushes Fast 0 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 1644 Drops 0
Protocol Path Pkts In Chars In Pkts Out Chars Out
Other Process 0 0 266439 15986340
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
IP Process 1462884 600345083 1531106 640448817
Cache misses 0
Fast 488498902 3603015881 611791220 3096983339
Auton/SSE 0 0 0 0
DEC MOP Process 4362 335874 4423 340571
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Spanning Tree Process 1304956 69162668 0 0
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
ARP Process 376 22560 3646 218760
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
CDP Process 43830 17970300 44406 14121108
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
CCF7206#
====================================================
CCF7206#show interface fastethernet 2/1 switching
FastEthernet2/1 Core Connect IP only
Throttle count 454800
Drops RP 477695 SP 0
SPD Flushes Fast 0 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 1644 Drops 0
Protocol Path Pkts In Chars In Pkts Out Chars Out
Other Process 0 0 266743 16004580
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
IP Process 1464419 601013236 1533200 641195796
Cache misses 0
Fast 490457765 4232593974 614359216 3520781845
Auton/SSE 0 0 0 0
DEC MOP Process 4367 336259 4428 340956
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Spanning Tree Process 1306453 69242009 0 0
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
ARP Process 378 22680 3655 219300
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
CDP Process 43879 17990390 44457 14137326
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
06-05-2006 11:07 PM
Hi Friend,
I see lot of process switching in the interface switching output you posted
For example
IP Process 1464419 601013236 1533200 641195796
Now as far as the configuration goes I think "ip route-cache cef" is already enabled on your interface as I do not see in the configuration which means it is enabled bydefault but still you can apply this commands on this interface and see if it reduces the process switching.
Also have a look at this link as how to verify CEF
http://www.cisco.com/warp/public/105/cef_whichpath.html#backinfo
Regards,
Ankur
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