[c-nsp] STP active/listed on wrong port

[Dan Brisson]

I think you mean "untagged" frames. 

-dan



Sent from a mobile phone with a tiny keyboard

On Mar 12, 2013, at 2:21 PM, "Harold 'Buz' Dale" <buz.dale at usg.edu> wrote:

> Sure - It's a trunk.  VLAN one is the native vlan the tagged frames flow over...
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of "Rolf Hanßen"
> Sent: Tuesday, March 12, 2013 13:34
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] STP active/listed on wrong port
> 
> Hello list,
> 
> do you have an explanation why STP thinks Gi7/16 belongs to vlan 1 ?
> 
> edge1-dus3#sh spanning-tree
> 
> VLAN0001
>  Spanning tree enabled protocol ieee
>  Root ID    Priority    32769
>             Address     5475.d0a6.75c0
>             This bridge is the root
>             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
> 
>  Bridge ID  Priority    32769  (priority 32768 sys-id-ext 1)
>             Address     5475.d0a6.75c0
>             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec
>             Aging Time 300
> 
> Interface           Role Sts Cost      Prio.Nbr Type
> ------------------- ---- --- --------- --------
> --------------------------------
> Gi7/16              Desg FWD 4         128.1552 P2p
> 
> 
> Interface Config:
> interface GigabitEthernet7/16
> description custsw2-dus1 A16
> switchport
> switchport trunk encapsulation dot1q
> switchport trunk allowed vlan 1253,1606  switchport mode trunk  mtu 9216  load-interval 30 end
> 
> STP is disabled on all other vlans:
> no spanning-tree vlan 2-4000
> 
> Gi7/16 is not listed here:
> 
> edge1-dus3#sh vlan id 1
> 
> VLAN Name                             Status    Ports
> ---- -------------------------------- ---------
> -------------------------------
> 1    default                          active    Gi1/5, Gi1/8, Gi1/13,
> Gi1/25, Gi1/27, Gi1/48, Te4/1, Gi6/1, Gi7/1, Gi7/3, Gi7/4, Gi7/5, Gi7/6, Gi7/7, Gi7/8, Gi7/9, Gi7/10, Gi7/11, Gi7/12, Gi7/13, Gi7/14, Gi7/15, Gi7/17, Gi7/18, Gi7/19
>                                                Gi7/20, Gi7/21, Gi7/22, Gi7/23, Gi7/24
> 
> VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1
> Trans2
> ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------
> ------
> 1    enet  100001     1500  -      -      -        -    -        0      0
> 
> Remote SPAN VLAN
> ----------------
> Disabled
> 
> Primary Secondary Type              Ports
> ------- --------- -----------------
> ------------------------------------------
> 
> 
> Port is up and works fine:
> 
> edge1-dus3#sh int Gi7/16
> GigabitEthernet7/16 is up, line protocol is up (connected)
>  Hardware is C6k 1000Mb 802.3, address is 001d.a246.3743 (bia
> 001d.a246.3743)
>  Description: custsw2-dus1 A16
>  MTU 9216 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
>     reliability 255/255, txload 6/255, rxload 6/255
>  Encapsulation ARPA, loopback not set
>  Keepalive set (10 sec)
>  Full-duplex, 1000Mb/s, media type is LX
>  input flow-control is off, output flow-control is off
>  Clock mode is auto
>  ARP type: ARPA, ARP Timeout 04:00:00
>  Last input 00:00:00, output never, output hang never
>  Last clearing of "show interface" counters never
>  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
>  Queueing strategy: fifo
>  Output queue: 0/40 (size/max)
>  30 second input rate 27117000 bits/sec, 3517 packets/sec
>  30 second output rate 24383000 bits/sec, 2860 packets/sec
>     32078138057 packets input, 32998390284372 bytes, 0 no buffer
>     Received 524965 broadcasts (173874 multicasts)
>     0 runts, 0 giants, 0 throttles
>     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
>     0 watchdog, 0 multicast, 0 pause input
>     0 input packets with dribble condition detected
>     13839785752 packets output, 9991981200426 bytes, 0 underruns
>     0 output errors, 0 collisions, 3 interface resets
>     0 unknown protocol drops
>     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
> 
> 
> edge1-dus3#sh version
> Cisco IOS Software, c7600s72033_rp Software (c7600s72033_rp-ADVIPSERVICESK9-M), Version 15.1(2)S, RELEASE SOFTWARE
> (fc1)
> 
> Hardware is Cisco 7609-S, Sub720-3BXL, Slot 7 is a WS-X6724-SFP
> 
> kind regards
> Rolf Hanßen
> 
> 
> 
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