[c-nsp] High interrupt load on 7507
David Coulson
david at davidcoulson.net
Wed Jun 21 12:46:03 EDT 2006
Rodney Dunn wrote:
> I don't have a setup to test right now but dot1q should surely
> be dCEF switched.
That's what I thought. However, whenever I try to figure it out, a 'sh
int switching' doesn't show me sub-interfaces.
> What type of vip2 do you have and how much memory on them?
VIP2-50. 128Mb/8Mb. GEIP is the same.
> Post a 'sh cef line', 'sh int stat' after you clear the counters
> and let it run for 2 minutes.
Slot 1 has cDS-3s on it, which I excluded from this e-mail since I'm not
concerned with them right now.
The issue this morning was traffic from BVI212 into Fa6/0/0. I took out
the BVI and just went with a straight sub-if, but the load was
identical. I know BVIs are not dCEF switched, although I'm not seeing a
performance difference between using straight sub-ifs or BVIs. One
curious thing is that Fa 6/0/0 used to be Gi4/0/0.100, but the CPU was
running 70% just for interrupting when it wasn't doing a whole lot.
Moving it to Fa 6/0/0 dropped it to about 25% (e.g. from one 5min
interval to the next, moving from the sub-if to Fa 6/0/0 and maintaining
the same traffic level the CPU load was very different). That's why I'm
thinking the sub-if stuff is not being dCEF switched.
core1#show cef line
Slot MsgSent XDRSent Window LowQ MedQ HighQ Flags
6 2783055 7810106 221 0 0 0 up
0 2783052 7810103 221 0 0 0 up
4 2783057 7810057 221 0 0 0 up
1 2783051 7809965 221 0 0 0 up
VRF Default-table, version 1784573, 116855 routes
Slot Version CEF-XDR I/Fs State Flags
6 1784573 2284901 24 Active sync, table-up
0 1784573 2284901 45 Active sync, table-up
4 1784573 2284901 45 Active sync, table-up
1 1784573 2284901 48 Active sync, table-up
core1#
core1#sh int st
GigabitEthernet0/0/0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 4676 405918 307 21084
Route cache 302379 328418662 4957 692518
Distributed cache 0 0 0 0
Total 307055 328824580 5264 713602
GigabitEthernet4/0/0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 42395 28657559 3264 249259
Route cache 530584 466662433 388103 161035767
Distributed cache 219315 167903831 697578 165047429
Total 792294 663223823 1088945 326332455
FastEthernet6/0/0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 2716 331015 1911 265564
Route cache 121846 12634388 150584 152442701
Distributed cache 1006816 229643636 761018 222849022
Total 1131378 242609039 913513 375557287
Serial6/1/0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 707 103637 594 35798
Route cache 263761 122891945 153301 132731683
Distributed cache 947156 235143260 989048 375224824
Total 1211624 358138842 1142943 507992305
Interface Serial6/1/1 is disabled
BVI103
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 2 303 2 120
Route cache 12842 17236619 7470 570007
Distributed cache 0 0 0 0
Total 12844 17236922 7472 570127
BVI120
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 92 6220 66 4092
Route cache 3942 3748701 3019 354752
Distributed cache 0 0 0 0
Total 4034 3754921 3085 358844
BVI121
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 79 4870 69 4272
Route cache 0 0 0 0
Distributed cache 0 0 0 0
Total 79 4870 69 4272
BVI122
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 76 4690 70 4332
Route cache 3996 2848363 2010 373504
Distributed cache 0 0 0 0
Total 4072 2853053 2080 377836
BVI123
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 76 4690 70 4332
Route cache 2531 2815804 1209 240225
Distributed cache 0 0 0 0
Total 2607 2820494 1279 244557
BVI124
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 77 4750 71 4392
Route cache 94526 125027678 39592 4213275
Distributed cache 0 0 0 0
Total 94603 125032428 39663 4217667
BVI126
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 79 6352 72 4512
Route cache 30288 3110109 22601 1790170
Distributed cache 0 0 0 0
Total 30367 3116461 22673 1794682
BVI127
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 88 5946 82 5212
Route cache 31143 30945333 12882 2132586
Distributed cache 0 0 0 0
Total 31231 30951279 12964 2137798
BVI128
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 74 4570 68 4212
Route cache 150501 156326432 122319 11926416
Distributed cache 0 0 0 0
Total 150575 156331002 122387 11930628
BVI201
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 369 22302 86 5332
Route cache 36505 17024380 30064 7530296
Distributed cache 0 0 0 0
Total 36874 17046682 30150 7535628
BVI203
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 15 942 34 2670
Route cache 5920 3627125 2863 418317
Distributed cache 0 0 0 0
Total 5935 3628067 2897 420987
BVI204
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 0 0 20 1800
Route cache 5 490 5 490
Distributed cache 0 0 0 0
Total 5 490 25 2290
BVI205
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 0 0 24 2040
Route cache 5131 671374 6900 6189797
Distributed cache 0 0 0 0
Total 5131 671374 6924 6191837
BVI206
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 3 437 21 1860
Route cache 15786 6699537 23922 25091706
Distributed cache 0 0 0 0
Total 15789 6699974 23943 25093566
BVI208
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 3 180 23 1980
Route cache 3626 679404 2962 1430542
Distributed cache 0 0 0 0
Total 3629 679584 2985 1432522
BVI209
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 1 60 24 2040
Route cache 1587 201217 1709 1118831
Distributed cache 0 0 0 0
Total 1588 201277 1733 1120871
BVI211
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 3 270 23 2070
Route cache 409 29671 396 32401
Distributed cache 0 0 0 0
Total 412 29941 419 34471
BVI212
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 77 4750 91 6192
Route cache 14258 12254718 4949 648485
Distributed cache 0 0 0 0
Total 14335 12259468 5040 654677
Loopback0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 0 0 0 0
Route cache 0 0 0 0
Distributed cache 0 0 0 0
Total 0 0 0 0
Loopback1
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 0 0 0 0
Route cache 0 0 0 0
Distributed cache 0 0 0 0
> 'sh run' so we can see the features you have enabled on the ingress
> egress interfaces.
bridge irb
!
!
interface Loopback0
ip address 207.166.219.1 255.255.255.255
!
interface Loopback1
ip address 207.166.219.5 255.255.255.255
!
interface GigabitEthernet0/0/0
no ip address
load-interval 30
negotiation auto
hold-queue 2500 in
!
interface GigabitEthernet0/0/0.100
encapsulation dot1Q 100
no ip redirects
no ip proxy-arp
no cdp enable
bridge-group 100
!
interface GigabitEthernet0/0/0.101
encapsulation dot1Q 101
no cdp enable
!
interface GigabitEthernet0/0/0.103
encapsulation dot1Q 103
no cdp enable
bridge-group 103
!
interface GigabitEthernet0/0/0.120
encapsulation dot1Q 120
no cdp enable
bridge-group 120
!
interface GigabitEthernet0/0/0.121
encapsulation dot1Q 121
no cdp enable
bridge-group 121
!
interface GigabitEthernet0/0/0.122
encapsulation dot1Q 122
no cdp enable
bridge-group 122
!
interface GigabitEthernet0/0/0.123
encapsulation dot1Q 123
no cdp enable
bridge-group 123
!
interface GigabitEthernet0/0/0.124
encapsulation dot1Q 124
no cdp enable
bridge-group 124
!
interface GigabitEthernet0/0/0.126
encapsulation dot1Q 126
no cdp enable
bridge-group 126
!
interface GigabitEthernet0/0/0.127
encapsulation dot1Q 127
no cdp enable
bridge-group 127
!
interface GigabitEthernet0/0/0.128
encapsulation dot1Q 128
no cdp enable
bridge-group 128
!
interface GigabitEthernet0/0/0.129
encapsulation dot1Q 129
no ip redirects
shutdown
no cdp enable
bridge-group 129
!
interface GigabitEthernet0/0/0.131
encapsulation dot1Q 131
no cdp enable
bridge-group 131
bridge-group 131 spanning-disabled
!
interface GigabitEthernet0/0/0.132
encapsulation dot1Q 132
no cdp enable
bridge-group 132
bridge-group 132 spanning-disabled
!
interface GigabitEthernet0/0/0.201
encapsulation dot1Q 201
no cdp enable
bridge-group 201
!
interface GigabitEthernet0/0/0.203
encapsulation dot1Q 203
no cdp enable
bridge-group 203
!
interface GigabitEthernet0/0/0.204
encapsulation dot1Q 204
no cdp enable
bridge-group 204
!
interface GigabitEthernet0/0/0.205
encapsulation dot1Q 205
no cdp enable
bridge-group 205
!
interface GigabitEthernet0/0/0.206
encapsulation dot1Q 206
no cdp enable
bridge-group 206
!
interface GigabitEthernet0/0/0.208
encapsulation dot1Q 208
no cdp enable
bridge-group 208
!
interface GigabitEthernet0/0/0.209
encapsulation dot1Q 209
no cdp enable
bridge-group 209
!
interface GigabitEthernet0/0/0.211
encapsulation dot1Q 211
no cdp enable
bridge-group 211
!
interface GigabitEthernet0/0/0.212
encapsulation dot1Q 212
no cdp enable
bridge-group 212
!
interface GigabitEthernet4/0/0
no ip address
load-interval 30
negotiation auto
hold-queue 2500 in
!
interface GigabitEthernet4/0/0.101
encapsulation dot1Q 101
!
interface GigabitEthernet4/0/0.103
encapsulation dot1Q 103
bridge-group 103
bridge-group 103 priority 64
!
interface GigabitEthernet4/0/0.120
encapsulation dot1Q 120
bridge-group 120
bridge-group 120 priority 64
!
interface GigabitEthernet4/0/0.121
encapsulation dot1Q 121
bridge-group 121
bridge-group 121 priority 64
!
interface GigabitEthernet4/0/0.122
encapsulation dot1Q 122
bridge-group 122
bridge-group 122 priority 64
!
interface GigabitEthernet4/0/0.123
encapsulation dot1Q 123
bridge-group 123
bridge-group 123 priority 64
!
interface GigabitEthernet4/0/0.124
encapsulation dot1Q 124
bridge-group 124
bridge-group 124 priority 64
!
interface GigabitEthernet4/0/0.126
encapsulation dot1Q 126
bridge-group 126
bridge-group 126 priority 64
!
interface GigabitEthernet4/0/0.127
encapsulation dot1Q 127
bridge-group 127
bridge-group 127 priority 64
!
interface GigabitEthernet4/0/0.128
encapsulation dot1Q 128
bridge-group 128
bridge-group 128 priority 64
!
interface GigabitEthernet4/0/0.129
encapsulation dot1Q 129
ip address 207.166.219.90 255.255.255.248
no ip redirects
no cdp enable
standby 129 ip 207.166.219.89
standby 129 priority 110
standby 129 preempt
!
interface GigabitEthernet4/0/0.131
encapsulation dot1Q 131
bridge-group 131
bridge-group 131 priority 64
bridge-group 131 spanning-disabled
!
interface GigabitEthernet4/0/0.132
encapsulation dot1Q 132
bridge-group 132
bridge-group 132 priority 64
bridge-group 132 spanning-disabled
!
interface GigabitEthernet4/0/0.201
encapsulation dot1Q 201
bridge-group 201
bridge-group 201 priority 64
!
interface GigabitEthernet4/0/0.203
encapsulation dot1Q 203
bridge-group 203
bridge-group 203 priority 64
!
interface GigabitEthernet4/0/0.204
encapsulation dot1Q 204
bridge-group 204
bridge-group 204 priority 64
!
interface GigabitEthernet4/0/0.205
encapsulation dot1Q 205
no cdp enable
bridge-group 205
bridge-group 205 priority 64
!
interface GigabitEthernet4/0/0.206
encapsulation dot1Q 206
bridge-group 206
bridge-group 206 priority 64
!
interface GigabitEthernet4/0/0.208
encapsulation dot1Q 208
bridge-group 208
bridge-group 208 priority 64
!
interface GigabitEthernet4/0/0.209
encapsulation dot1Q 209
bridge-group 209
bridge-group 209 priority 64
!
interface GigabitEthernet4/0/0.211
encapsulation dot1Q 211
bridge-group 211
bridge-group 211 priority 64
!
interface GigabitEthernet4/0/0.212
encapsulation dot1Q 212
bridge-group 212
bridge-group 212 priority 64
!
interface GigabitEthernet4/0/0.400
encapsulation dot1Q 400
ip address 207.166.219.9 255.255.255.252
ip ospf cost 1
no cdp enable
!
interface FastEthernet6/0/0
ip address 207.166.193.2 255.255.255.0 secondary
ip address 207.166.219.161 255.255.255.248 secondary
ip address 207.166.192.2 255.255.255.0
no ip redirects
no ip proxy-arp
ip route-cache same-interface
ip ospf cost 20
ip ospf priority 60
ip policy route-map Filterz
full-duplex
no cdp enable
standby 10 ip 207.166.192.1
standby 10 priority 150
standby 10 preempt
standby 100 ip 207.166.193.1
standby 100 priority 110
standby 100 preempt
!
interface Serial6/1/0
description DS3 to Cogent (Order #1-33ZTH)
ip address 216.28.126.134 255.255.255.252
ip access-group as2828-inbound in
no ip redirects
dsu bandwidth 44210
scramble
framing c-bit
cablelength 100
crc 32
serial restart-delay 0
!
interface Serial6/1/1
no ip address
shutdown
dsu bandwidth 44210
framing c-bit
cablelength 10
serial restart-delay 0
!
interface BVI103
description VLAN 103 - N2Net Colocation 2
ip address 207.166.222.129 255.255.255.192
no ip redirects
rate-limit input access-group 17 384000 65536 65536 conform-action
transmit exceed-action drop
rate-limit input access-group 18 1048000 65536 65536 conform-action
transmit exceed-action drop
rate-limit input access-group 22 1048000 65536 65536 conform-action
transmit exceed-action drop
rate-limit output access-group 17 384000 65536 65536 conform-action
transmit exceed-action drop
rate-limit output access-group 18 1048000 65536 65536 conform-action
transmit exceed-action drop
rate-limit output access-group 22 1048000 65536 65536 conform-action
transmit exceed-action drop
!
interface BVI120
description VLAN interface to Health Journeys transit
ip address 207.166.219.53 255.255.255.252 secondary
ip address 207.166.219.146 255.255.255.248
no ip redirects
standby 120 ip 207.166.219.145
standby 120 priority 110
standby 120 preempt
!
interface BVI121
description VLAN 121 to Euro Adpot Agency transit
ip address 207.166.219.154 255.255.255.248
no ip redirects
rate-limit input 10480000 131072 131072 conform-action transmit
exceed-action drop
rate-limit output 10480000 131072 131072 conform-action transmit
exceed-action drop
standby 121 ip 207.166.219.153
standby 121 priority 110
standby 121 preempt
!
interface BVI122
description VLAN 122 to ICG Solutions transit
ip address 207.166.219.98 255.255.255.248
no ip redirects
rate-limit input 1048000 65536 65536 conform-action transmit
exceed-action drop
rate-limit output 1048000 65536 65536 conform-action transmit
exceed-action drop
standby 122 ip 207.166.219.97
standby 122 priority 110
standby 122 preempt
!
interface BVI123
description VLAN 123 to Rainbow Babies transit
ip address 207.166.219.130 255.255.255.248
no ip redirects
rate-limit input 1048000 65536 65536 conform-action transmit
exceed-action drop
rate-limit output 1048000 65536 65536 conform-action transmit
exceed-action drop
standby 123 ip 207.166.219.129
standby 123 priority 110
standby 123 preempt
!
interface BVI124
description VLAN 124 - Transit to Cox Consulting
ip address 207.166.219.61 255.255.255.252 secondary
ip address 207.166.219.138 255.255.255.248
no ip redirects
standby 124 ip 207.166.219.137
standby 124 priority 110
standby 124 preempt
!
interface BVI126
description VLAN 126 - Corona Colo
ip address 207.166.219.34 255.255.255.248
no ip redirects
ip route-cache same-interface
ip route-cache flow
standby 126 ip 207.166.219.33
standby 126 priority 110
standby 126 preempt
!
interface BVI127
description VLAN 127 - Fathom IT Colo
ip address 207.166.219.42 255.255.255.248
ip access-group vlan127egress in
no ip redirects
standby 127 ip 207.166.219.41
standby 127 priority 110
standby 127 preempt
!
interface BVI128
ip address 207.166.219.82 255.255.255.248
no ip redirects
standby 128 ip 207.166.219.81
standby 128 priority 110
standby 128 preempt
!
interface BVI201
description VLAN 201 - Mat Kovach
ip address 207.166.219.114 255.255.255.248 secondary
ip address 207.166.200.193 255.255.255.192
no ip redirects
standby 201 ip 207.166.219.113
standby 201 priority 110
standby 201 preempt
!
interface BVI203
description VLAN 203 - Playbook
ip address 207.166.200.1 255.255.255.224 secondary
ip address 207.166.200.5 255.255.255.224
no ip redirects
!
interface BVI204
description VLAN 204 - Allwork
ip address 207.166.197.17 255.255.255.252
no ip redirects
!
interface BVI205
ip address 207.166.196.193 255.255.255.240
!
interface BVI206
description VLAN 206 - Cornerstone
ip address 207.166.218.193 255.255.255.192
no ip redirects
rate-limit input 1048000 65536 65536 conform-action transmit
exceed-action drop
rate-limit output 1048000 65536 65536 conform-action transmit
exceed-action drop
!
interface BVI208
description VLAN 208 - Fast Ethernet to CoDFA 13th fl
ip address 207.166.219.73 255.255.255.252
no ip redirects
!
interface BVI209
description VLAN 209 - Buckley King
ip address 207.166.196.65 255.255.255.248
no ip redirects
!
interface BVI211
ip address 207.166.198.41 255.255.255.248
no ip redirects
!
interface BVI212
ip address 207.166.197.170 255.255.255.248
no ip redirects
standby 212 ip 207.166.197.169
standby 212 priority 110
standby 212 preempt
David
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