Hi,
On a pair of my CISCO7609-s (engine:sup720-3B IOS Version:12.2(33)SRD4),some interfaces is configured as routing interface but also them are attend MSTP caculation and i really caught BPDU packet go out from these ports. Why?
------------------ show version ------------------
Cisco IOS Software, c7600s72033_rp Software (c7600s72033_rp-ADVIPSERVICES-M), Version 12.2(33)SRD4, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Mon 22-Feb-10 04:44 by prod_rel_team
ROM: System Bootstrap, Version 12.2(17r)SX5, RELEASE SOFTWARE (fc1)
BOOTLDR: Cisco IOS Software, c7600s72033_rp Software (c7600s72033_rp-ADVIPSERVICES-M), Version 12.2(33)SRD4, RELEASE SOFTWARE (fc2)
HIHK-PS-IMS-CE03-CISCO7609 uptime is 36 weeks, 5 days, 20 hours, 10 minutes
Uptime for this control processor is 36 weeks, 5 days, 20 hours, 12 minutes
System returned to ROM by reload at 00:43:40 UTC Wed Jun 22 2011 (SP by reload)
System restarted at 00:54:08 UTC Wed Jun 22 2011
System image file is "sup-bootdisk:c7600s72033-advipservices-mz.122-33.SRD4.bin"
Last reload type: Normal Reload
Last reload reason: Reason unspecified
cisco CISCO7609-S (R7000) processor (revision 1.0) with 458720K/65536K bytes of memory.
Processor board ID FOX1306G1GW
SR71000 CPU at 600Mhz, Implementation 0x504, Rev 1.2, 512KB L2 Cache
Last reset from s/w reset
23 Virtual Ethernet interfaces
340 Gigabit Ethernet interfaces
2045K bytes of non-volatile configuration memory.
8192K bytes of packet buffer memory.
65536K bytes of Flash internal SIMM (Sector size 512K).
Configuration register is 0x2102
------------------ show running-config ------------------
Building configuration...
Current configuration : 82331 bytes
!
! Last configuration change at 20:05:28 UTC Mon Mar 5 2012 by maoliuji15208989284
! NVRAM config last updated at 15:43:37 UTC Fri Mar 2 2012 by maoliuji15208989284
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
................
!
spanning-tree mode mst
spanning-tree extend system-id
!
spanning-tree mst configuration
name Radio_BST_MSTP
revision 1
!
spanning-tree mst 0 priority 24576
!
interface GigabitEthernet1/11
description TO-ABC
ip vrf forwarding A
ip address 10.80.123.130 255.255.255.128
speed 1000
duplex full
standby 108 ip 10.80.123.129
standby 108 timers msec 200 msec 600
standby 108 priority 120
standby 108 preempt delay minimum 120
!
!
..................
interface GigabitEthernet2/1
description TO-CDE
ip vrf forwarding A
ip address 10.80.126.2 255.255.255.128
speed 1000
duplex full
standby 101 ip 10.80.126.1
standby 101 timers msec 200 msec 600
standby 101 priority 120
standby 101 preempt delay minimum 120
!
!
end
------------------ show spanning-tree active ------------------
MST0
Spanning tree enabled protocol mstp
Root ID Priority 0
Address 0000.0000.0000
Cost 0
Port 3329 (Port-channel1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 24576 (priority 24576 sys-id-ext 0)
Address 0023.5ed9.8600
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi1/11 Desg FWD 20000 128.11 P2p Pre-STD-Rx
Gi1/12 Desg FWD 20000 128.12 P2p Pre-STD-Rx
Gi1/23 Desg FWD 20000 128.23 P2p Pre-STD-Rx
Gi1/33 Desg FWD 20000 128.33 P2p Pre-STD-Rx
Gi1/34 Desg FWD 20000 128.34 P2p Pre-STD-Rx
Gi1/41 Desg FWD 20000 128.41 P2p Pre-STD-Rx
Gi1/42 Desg FWD 20000 128.42 P2p Pre-STD-Rx
Gi1/43 Desg FWD 20000 128.43 P2p Pre-STD-Rx
Gi1/44 Desg FWD 20000 128.44 P2p Pre-STD-Rx
Gi1/45 Desg FWD 20000 128.45 P2p Pre-STD-Rx
Gi1/46 Desg FWD 20000 128.46 P2p Pre-STD-Rx
Gi2/1 Desg FWD 20000 128.257 P2p Pre-STD-Rx
Gi2/13 Desg FWD 20000 128.269 P2p Pre-STD-Rx
Gi2/29 Desg FWD 20000 128.285 P2p Pre-STD-Rx
Gi2/35 Desg FWD 20000 128.291 P2p Pre-STD-Rx
Gi2/36 Desg FWD 20000 128.292 P2p Pre-STD-Rx
Gi2/37 Desg FWD 20000 128.293 P2p Pre-STD-Rx
Gi2/38 Desg FWD 20000 128.294 P2p Pre-STD-Rx
Gi2/39 Desg FWD 20000 128.295 P2p Pre-STD-Rx
Gi2/40 Desg FWD 20000 128.296 P2p Pre-STD-Rx
Gi2/41 Desg FWD 20000 128.297 P2p Pre-STD-Rx
Gi2/42 Desg FWD 20000 128.298 P2p Pre-STD-Rx
Gi2/43 Desg FWD 20000 128.299 P2p Pre-STD-Rx
Gi2/44 Desg FWD 20000 128.300 P2p Pre-STD-Rx
Gi2/45 Desg FWD 20000 128.301 P2p Pre-STD-Rx
Gi2/46 Desg FWD 20000 128.302 P2p Pre-STD-Rx
Gi3/3 Desg FWD 20000 128.515 P2p Pre-STD-Rx
Gi3/15 Desg FWD 20000 128.527 P2p Pre-STD-Rx
Gi3/31 Desg FWD 20000 128.543 P2p Pre-STD-Rx
Gi3/39 Desg FWD 20000 128.551 P2p Pre-STD-Rx
Gi3/40 Desg FWD 20000 128.552 P2p Pre-STD-Rx
Gi3/41 Desg FWD 20000 128.553 P2p Pre-STD-Rx
Gi3/43 Desg FWD 20000 128.555 P2p Pre-STD-Rx
Gi7/5 Desg FWD 200000 128.1541 P2p Pre-STD-Rx
Gi7/6 Desg FWD 200000 128.1542 P2p Pre-STD-Rx
Gi7/11 Desg FWD 20000 128.1547 P2p
Po1 Root FWD 10000 128.3329 P2p
------------------ show spanning-tree summary ------------------
Switch is in mst mode (IEEE Standard)
Root bridge for: none
EtherChannel misconfig guard is enabled
Extended system ID is enabled
Portfast Default is disabled
PortFast BPDU Guard Default is disabled
Portfast BPDU Filter Default is disabled
Loopguard Default is disabled
UplinkFast is disabled
BackboneFast is disabled
Pathcost method used is long
Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
MST0 0 0 0 187 187
---------------------- -------- --------- -------- ---------- ----------
1 mst 0 0 0 187 187
