Hi,
We have 7609 box as PE router in our network but it recently it has high CPU due CEF scanner as the following,how can we troubleshoot this issue.
MPLS-PE-7609#sh proc cpu s
CPU utilization for five seconds: 79%/3%; one minute: 77%; five minutes: 78%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
120 815997840 11065504 73743 75.35% 67.56% 67.50% 0 CEF Scanner
9 13385666123229354316 0 2.55% 2.84% 2.90% 0 ARP Input
and this the Show version
MPLS-PE-7609#sh version
Cisco Internetwork Operating System Software
IOS (tm) s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF12a, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by cisco Systems, Inc.
Compiled Thu 10-Jan-08 23:52 by kellythw
Image text-base: 0x40101040, data-base: 0x42DC14D0
ROM: System Bootstrap, Version 12.2(17r)S4, RELEASE SOFTWARE (fc1)
BOOTLDR: s72033_rp Software (s72033_rp-ADVENTERPRISEK9_WAN-M), Version 12.2(18)SXF12a, RELEASE SOFTWARE (fc1)
MPLS-PE-7609 uptime is 2 years, 2 weeks, 6 hours, 21 minutes
Time since MPLS-PE-7609 switched to active is 2 years, 2 weeks, 6 hours, 27 minutes
System returned to ROM by power cycle at 07:13:31 PST Wed Feb 13 2008 (SP by power on)
System restarted at 10:30:48 UTC Mon Aug 27 2018
System image file is "sup-bootdisk:s72033-adventerprisek9_wan-mz.122-18.SXF12a.bin"
cisco CISCO7609 (R7000) processor (revision 1.2) with 983008K/65536K bytes of memory.
Processor board ID FOX111901HQ
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from s/w reset
SuperLAT software (copyright 1990 by Meridian Technology Corp).
X.25 software, Version 3.0.0.
Bridging software.
TN3270 Emulation software.
3 Enhanced FlexWAN controllers (1 FastEthernet)(4 POS)(3 Channelized OC3/STM-1).
3 Virtual Ethernet/IEEE 802.3 interfaces
1 FastEthernet/IEEE 802.3 interface
22 Gigabit Ethernet/IEEE 802.3 interfaces
96 Serial network interfaces
4 Packet over SONET network interfaces
3 Channelized STM-1 ports
1917K bytes of non-volatile configuration memory.
8192K bytes of packet buffer memory.
65536K bytes of Flash internal SIMM (Sector size 512K).
we have about 120 VRF enabled interfaces for L3-MPLS-VPN connections with other PE
and the total traffic in peak time is about 300mbps
and this the Show module
MPLS-PE-7609#show module
Mod Ports Card Type Model Serial No.
--- ----- -------------------------------------- ------------------ -----------
1 0 2 port adapter Enhanced FlexWAN WS-X6582-2PA JAE12056UKU
3 0 2 port adapter Enhanced FlexWAN WS-X6582-2PA JAE12056ULD
4 0 2 port adapter Enhanced FlexWAN WS-X6582-2PA JAE120110G2
5 2 Supervisor Engine 720 (Active) WS-SUP720-3BXL SAL114456FC
7 6 Firewall Module WS-SVC-FWM-1 SAD121506N3
8 6 Firewall Module WS-SVC-FWM-1 SAD121504ZA
9 8 Intrusion Detection System WS-SVC-IDSM-2 SAD121702MA
Mod MAC addresses Hw Fw Sw Status
--- ---------------------------------- ------ ------------ ------------ -------
1 001e.f778.3640 to 001e.f778.367f 2.3 12.2(18)SXF1 12.2(18)SXF1 Ok
3 0007.0e0c.b2c0 to 0007.0e0c.b2ff 2.3 12.2(18)SXF1 12.2(18)SXF1 Ok
4 001e.f778.3180 to 001e.f778.31bf 2.3 12.2(18)SXF1 12.2(18)SXF1 Ok
5 0016.9de6.57e8 to 0016.9de6.57eb 5.6 8.5(2) 12.2(18)SXF1 Ok
7 001f.9e1b.139c to 001f.9e1b.13a3 4.2 Unknown Unknown PwrDown
8 001f.9e1b.11d4 to 001f.9e1b.11db 4.2 7.2(1) 3.2(2) Ok
9 001f.9e82.44a0 to 001f.9e82.44a7 6.3 Unknown Unknown PwrDown
Mod Sub-Module Model Serial Hw Status
---- --------------------------- ------------------ ----------- ------- -------
5 Policy Feature Card 3 WS-F6K-PFC3BXL SAL11434QH7 1.8 Ok
5 MSFC3 Daughterboard WS-SUP720 SAL11434V8B 3.1 Ok
