I made a small change for my stack of eight 6248 switches to be the gateway for our single VLAN (instead of the firewall), and now the bcmRX process and ipMapForwardingTask have high CPU usage. bcmRX especially hovers around 25-30% continually. Can someone help me with what could be causing the issue? Relevant info below (all ports configured the same):
!Current Configuration:
!System Description "PowerConnect 6248, 3.3.3.3, VxWorks 6.5"
!System Software Version 3.3.3.3
!Cut-through mode is configured as disabled
!
configure
vlan database
vlan 9,30
ip igmp snooping 9
vlan routing 9 1
vlan routing 30 2
exit
hostname "Dell-Core-Stack"
sntp unicast client enable
sntp server pool.ntp.org
clock timezone -7 minutes 0 zone "PST"
stack
member 1 2
member 2 2
member 3 2
member 4 2
member 5 2
member 6 2
member 7 2
member 8 2
standby 2
exit
ip address none
ip name-server 192.168.100.53
ip name-server 192.168.100.54
logging console info
logging 192.168.97.254
exit
ip routing
ip route 0.0.0.0 0.0.0.0 192.168.100.254
arp dynamicrenew
arp timeout 600
interface vlan 9
routing
ip address 192.168.100.1 255.255.240.0
ip igmp
no ip unreachables
no ip redirects
exit
interface vlan 30 (used for testing, not in production)
routing
ip address 10.0.30.1 255.255.254.0
ip helper-address 192.168.100.54 dhcp
exit
monitor session 1 destination interface 5/g4
monitor session 1 source interface 5/g12
monitor session 1 mode
ip ssh server
no flowcontrol
spanning-tree bpdu-protection
spanning-tree priority 0
management access-list "No-Telnet"
deny service telnet priority 1
permit service ssh priority 2
permit service snmp priority 3
permit service http priority 4
permit service https priority 5
exit
ip igmp snooping
!
interface ethernet 1/g1
spanning-tree portfast
spanning-tree tcnguard
switchport access vlan 9
exit
...etc
------------------------------------------------------------------
------------------------------------------------------------------
Dell-Core-Stack#show ip stats
IpInReceives.................................... 911971039
IpInHdrErrors................................... 542
IpInAddrErrors................................. 8964
IpForwDatagrams.......................... 888432801
IpInUnknownProtos....................... 0
IpInDiscards.................................... 0
IpInDelivers...................................... 6876543
IpOutRequests................................ 4163784
IpOutDiscards.................................. 0
IpOutNoRoutes................................ 67
IpReasmTimeout............................ 60
IpReasmReqds............................... 0
IpReasmOKs................................... 0
IpReasmFails.................................. 0
IpFragOKs........................................ 0
IpFragFails....................................... 0
IpFragCreates................................. 0
IpRoutingDiscards......................... 0
IcmpInMsgs..................................... 22527
IcmpInErrors................................... 0
--More-- or (q)uit
IcmpInDestUnreachs................... 10
IcmpInTimeExcds.......................... 0
IcmpInParmProbs......................... 0
IcmpInSrcQuenchs....................... 0
IcmpInRedirects............................ 0
IcmpInEchos.................................. 22497
IcmpInEchoReps.......................... 20
IcmpInTimestamps...................... 0
IcmpInTimestampReps.............. 0
IcmpInAddrMasks......................... 0
IcmpInAddrMaskReps................. 0
IcmpOutMsgs................................ 90154
IcmpOutErrors............................... 0
IcmpOutDestUnreachs............... 67196
IcmpOutTimeExcds..................... 437
IcmpOutParmProbs..................... 0
IcmpOutSrcQuenchs................... 0
IcmpOutRedirects........................ 0
IcmpOutEchoReps...................... 22497
IcmpOutTimestamps.................. 0
IcmpOutTimestampReps........... 0
IcmpOutAddrMasks...................... 0
------------------------------------------------------------------
Dell-Core-Stack#show spanning-tree det
Spanning tree Enabled (BPDU flooding : Disabled) Portfast BPDU filtering Disabled mode rstp
CST Regional Root: 00:00:D0:67:E5:A9:7E:DE
Regional Root Path Cost: 0
ROOT ID
Address D0:67:E5:A9:7E:DE
This Switch is the Root.
Hello Time 2 Sec Max Age 20 sec Forward Delay 15 sec
Number of topology changes 12 last change occurred 0d17h18m29s ago
Times: hold 6, hello 2, max age 20, forward delay 15
Port 1/g1 Enabled
State: Disabled Role: Disabled
Port id: 128.1 Port Cost: 0
Port Fast: Yes (Configured: yes) Root Protection: No
Designated bridge Priority: 0 Address: D0:67:E5:A9:7E:DE
Designated port id: 0.0 External path cost: 0
CST Regional Root: 80:00:D0:67:E5:A9:7E:DE CST Port Cost: 0
BPDU: sent 0, received 0
Please let me know what other info you may need, thanks!