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High CPU on 6500 caused by NetBackups ???

asaykao73
Level 1
Level 1

Hi There,

We are experiencing continuing high CPU issues on our 6500 (generally 80+% most times).

#show proc cpu sorted | exc 0.00

CPU utilization for five seconds: 75%/67%; one minute: 69%; five minutes: 68%

PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process

273  2830496584 994142083       2847  2.95%  1.16%  1.10%   0 Port manager per

  77        1364       820       1663  1.59%  0.33%  0.10%   1 SSH Process

118  19546227921584654679       1233  1.35%  1.96%  1.49%   0 IP Input

   9   8752212681261616535        693  0.55%  0.79%  0.83%   0 ARP Input

170   134354752  30707951       4375  0.31%  0.17%  0.16%   0 Adj Manager

206   5639136443371313851          0  0.23%  0.50%  0.23%   0 Standby (HSRP)

171   145656920 222502762        654  0.23%  0.19%  0.19%   0 CEF process

   3   7512089321019079255        737  0.15%  0.22%  0.57%   0 IP-EIGRP(4): PDM

299    84202084  83653622       1006  0.15%  0.07%  0.08%   0 IPC LC Message H

124    47784372  96042068        497  0.15%  0.06%  0.04%   0 ARP HA

#sh ver

Cisco Internetwork Operating System Software

IOS (tm) s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(18)SXF10, RELEASE SOFTWARE (fc1)

.

.

cisco WS-C6513 (R7000) processor (revision 1.0) with 458720K/65536K bytes of memory.

Processor board ID TSC072300KA

SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache

I have performed a "debug netdr capture rx" and "debug netdr capture tx" and can see that the majority of packet captured are Netbackups (TCP 13724). Can anyone please tell me why this sort of traffic is being punted to the CPU from the captures below and how we might stop it being punted to the CPU???

------- dump of incoming inband packet -------

interface Te9/8, routine draco2_process_rx_packet_inline

dbus info: src_vlan 0x3FB(1019), src_indx 0x207(519), len 0x59E(1438)

  bpdu 0, index_dir 0, flood 0, dont_lrn 0, dest_indx 0x380(896)

  28020401 03FB0400 02070005 9E000000 00060520 09000040 00000000 03800000

mistral hdr: req_token 0x0(0), src_index 0x207(519), rx_offset 0x76(118)

  requeue 0, obl_pkt 0, vlan 0x3FB(1019)

destmac 00.07.B3.0B.B7.40, srcmac 00.0E.D6.0B.9D.C0, protocol 0800

protocol ip: version 0x04, hlen 0x05, tos 0x00, totlen 1420, identifier 2675

  df 1, mf 0, fo 0, ttl 127, src 172.17.3.51, dst 10.61.78.59

    tcp src 13724, dst 50486, seq 3079014292, ack 4193993640, win 65524 off 5 checksum 0x9D45 ack

------- dump of outgoing inband packet -------

interface Te9/2, routine send_one_bufhdr_pkt

dbus info: src_vlan 0x5DC(1500), src_indx 0x207(519), len 0x59E(1438)

  bpdu 0, index_dir 0, flood 0, dont_lrn 0, dest_indx 0x380(896)

  00020000 05DC2C00 02070005 9E000000 00060520 00000040 00000000 03800000

mistral hdr: req_token 0x0(0), src_index 0x207(519), rx_offset 0x76(118)

  requeue 0, obl_pkt 0, vlan 0x3FB(1019)

destmac 00.1A.30.2A.0A.40, srcmac 00.07.B3.0B.B7.40, protocol 0800

protocol ip: version 0x04, hlen 0x05, tos 0x00, totlen 1420, identifier 12067

  df 1, mf 0, fo 0, ttl 126, src 172.17.3.51, dst 10.61.78.59

    tcp src 13724, dst 50486, seq 1264642152, ack 4193993640, win 65524 off 5 checksum 0x98C ack

Thanks.

Andy

15 Replies 15

SUre, I will send you personal note.

HTH,
Niko
Review Cisco Networking for a $25 gift card