I have a cisco 7204 vxr that terminates a 300 meg ethernet circuit asn well as an mpls DS-3. CPU increases along with utilization of the ethernet circuit. When the utilization gets to around 150 Mbps on the receive, the cpu is maxed out at 100%. I am wondering if the router can support the amount of traffic coming through it. The majority of the traffic is voip using g729 codec, so packet size is small. We are no where close to peak utilization and cpu is at 39%. Here is what I see currently:
#sh ver
Cisco IOS Software, 7200 Software (C7200-ADVIPSERVICESK9-M), Version 12.4(15)T4, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Thu 13-Mar-08 10:40 by prod_rel_team
ROM: System Bootstrap, Version 12.3(4r)T3, RELEASE SOFTWARE (fc1)
BOOTLDR: 7200 Software (C7200-KBOOT-M), Version 12.3(15), RELEASE SOFTWARE (fc3)
uptime is 3 years, 1 week, 3 days, 6 hours, 40 minutes
System returned to ROM by Reload Command
System restarted at 08:26:49 UTC Wed May 14 2008
System image file is "disk2:c7200-advipservicesk9-mz.124-15.T4.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
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Cisco 7204VXR (NPE-G1) processor (revision B) with 491520K/32768K bytes of memory.
Processor board ID 26817669
SB-1 CPU at 700MHz, Implementation 1025, Rev 0.2, 512KB L2 Cache
4 slot VXR midplane, Version 2.6
Last reset from power-on
PCI bus mb1 (Slots 1, 3 and 5) has a capacity of 600 bandwidth points.
Current configuration on bus mb1 has a total of 100 bandwidth points.
This configuration is within the PCI bus capacity and is supported.
PCI bus mb2 (Slots 2, 4 and 6) has a capacity of 600 bandwidth points.
Current configuration on bus mb2 has a total of 0 bandwidth points.
This configuration is within the PCI bus capacity and is supported.
Please refer to the following document "Cisco 7200 Series Port Adaptor
Hardware Configuration Guidelines" on Cisco.com <http://www.cisco.com>
for c7200 bandwidth points oversubscription and usage guidelines.
3 Gigabit Ethernet interfaces
1 Serial interface
509K bytes of NVRAM.
62720K bytes of ATA PCMCIA card at slot 2 (Sector size 512 bytes).
16384K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2102
#sh proc cpu
CPU utilization for five seconds: 38%/36%; one minute: 39%; five minutes: 39%
#sh inventory
NAME: "Chassis", DESCR: "Cisco 7204VXR, 4-slot chassis"
PID: CISCO7204VXR , VID: ,
NAME: "NPE-G1 0", DESCR: "Cisco 7200 Series Network Processing Engine NPE-G1"
PID: NPE-G1 , VID: ,
NAME: "disk2", DESCR: "64MB Compact Flash Disk for NPE-G1"
PID: MEM-NPE-G1-FLD64 , VID: , SN:
NAME: "module 1", DESCR: "Serial T3+"
PID: PA-T3+= , VID: ,
NAME: "Power Supply 1", DESCR: "Cisco 7200 AC Power Supply"
PID: PWR-7200-AC , VID: , SN:
NAME: "Power Supply 2", DESCR: "Cisco 7200 AC Power Supply"
PID: PWR-7200-AC , VID: , SN:
GigabitEthernet0/1 is up, line protocol is up
Hardware is BCM1250
Description: (MPLS LAN)
Internet address is x.x.x.x
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is RJ45
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:52, output 00:00:00, output hang never
Last clearing of "show interface" counters 04:48:49
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 87000 bits/sec, 164 packets/sec
5 minute output rate 2697000 bits/sec, 243 packets/sec
2304373 packets input, 185375406 bytes, 0 no buffer
Received 336 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 9151 multicast, 0 pause input
0 input packets with dribble condition detected
3199907 packets output, 4063355247 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 pause output
0 output buffer failures, 0 output buffers swapped out
#sh int gi 0/2
GigabitEthernet0/2 is up, line protocol is up
Hardware is BCM1250
Description: "WAN (300M)"
Internet address is x.x.x.x
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 3/255, rxload 12/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, link type is force-up, media type is ZX
output flow-control is unsupported, input flow-control is XON
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 04:48:51
Input queue: 0/75/1/561 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 50072000 bits/sec, 80406 packets/sec
30 second output rate 14841000 bits/sec, 12179 packets/sec
844705896 packets input, 1777600166 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
199 input errors, 0 CRC, 0 frame, 199 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
115272242 packets output, 482335841 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 pause output
0 output buffer failures, 0 output buffers swapped out
#sh int gi 0/3
GigabitEthernet0/3 is up, line protocol is up
Hardware is BCM1250
Description: "LAN 300M"
Internet address is x.x.x.x
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 12/255, rxload 3/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is RJ45
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 00:01:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 04:48:52
Input queue: 0/75/1/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 14931000 bits/sec, 12365 packets/sec
30 second output rate 50159000 bits/sec, 80590 packets/sec
118538597 packets input, 680510291 bytes, 0 no buffer
Received 41003 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 16981 multicast, 0 pause input
0 input packets with dribble condition detected
848042180 packets output, 1976487006 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 pause output
0 output buffer failures, 0 output buffers swapped out
#sh int serial 1/0
Serial1/0 is up, line protocol is up
Hardware is M1T-T3+ pa
Description: DS3 MPLS WAN
Internet address is x.x.x.x
MTU 4470 bytes, BW 10500 Kbit, DLY 200 usec,
reliability 255/255, txload 2/255, rxload 58/255
Encapsulation PPP, LCP Open
Open: IPCP, crc 16, loopback not set
Keepalive set (10 sec)
Restart-Delay is 0 secs
Last input 00:00:17, output 00:00:00, output hang never
Last clearing of "show interface" counters 04:53:01
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: Class-based queueing
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/31/256 (active/max active/max total)
Reserved Conversations 4/4 (allocated/max allocated)
Available Bandwidth 6947 kilobits/sec
5 minute input rate 2429000 bits/sec, 231 packets/sec
5 minute output rate 89000 bits/sec, 162 packets/sec
3257899 packets input, 4100695534 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 parity
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
2344248 packets output, 164998094 bytes, 0 underruns
0 output errors, 0 applique, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
rxLOS inactive, rxLOF inactive, rxAIS inactive
txAIS inactive, rxRAI inactive, txRAI inactive
