I have got a Cisco 3845 with 2 HWIC WITH 4 PORTS one on slot 0 and another on slot 2
All interfaces on the first card slot 0 fa0/0/0 - 3 are configured on different vlans and are working fine.
on Slot 2, a modem from ISP is connected to fa0/2/1 and is configured on vlan 2
sw a vlan 2
int vlan 2 is properly configured.
Int fa0/2/1 is up, however int vlan 2 is down.
THe vlan 2 exists in sh vlan-switch.
When I checked the spanning-tree on vlan 2
it says port 22/ fa0/2/1 is bad port type: port mode access(1)
What could be the problem?
I guess you don't have more than 15 VLANs?
(AFAIK the HWIC cards support only up to 15 VLANS)
Could you check if the port connected to the modem came up properly, maybe the ISP modem
needs some special duplex/speed configuration?
I am got 5 vlans.
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/0/0, Fa0/2/0, Fa0/2/1
2 VLAN0002 active Fa0/0/1
3 VLAN0003 active Fa0/0/2
4 VLAN0004 active Fa0/0/3
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 1002 1003
2 enet 100002 1500 - - - - - 0 0
3 enet 100003 1500 - - - - - 0 0
4 enet 100004 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 1 1003
1003 tr 101003 1500 1005 0 - - srb 1 1002
1004 fdnet 101004 1500 - - 1 ibm - 0 0
1005 trnet 101005 1500 - - 1 ibm - 0 0
could you also post some interface information:
show int fa0/2/1
show int fa0/2/1 switchport
I just want to make sure that the port 0/2/1 is up and running (btw. is this the only port in VLAN 2?)
i have the following problem
*Jan 12 11:49:42.899 BI: %SPANTREE-7-RECV_1Q_NON_TRUNK: Received 802.1Q BPDU on non trunk FastEthernet0/0/1 VLAN2.
*Jan 12 11:49:42.899 BI: %SPANTREE-7-BLOCK_PORT_TYPE: Blocking FastEthernet0/0/1 on VLAN2. Inconsistent port type
Here are the details
#sh int fa0/0/1 switchport
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: native
Negotiation of Trunking: Disabled
Access Mode VLAN: 2 (VLAN0002)
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Trunking VLANs Active: 2
Priority for untagged frames: 0
Override vlan tag priority: FALSE
Voice VLAN: none
Appliance trust: none
#sh int fa0/0/1
FastEthernet0/0/1 is up, line protocol is up
Hardware is Fast Ethernet, address is c84c.7542.c872 (bia c84c.7542.c872)
Description: Connexion Internet Spidernet
MTU 1500 bytes, BW 1000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 72/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
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: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 283000 bits/sec, 127 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
343976 packets input, 89874579 bytes, 0 no buffer
Received 249153 broadcasts, 0 runts, 0 giants, 0 throttles
23 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
1871 packets output, 116955 bytes, 0 underruns
10 output errors, 33 collisions, 3 interface resets
12713 unknown protocol drops
0 babbles, 0 late collision, 25 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
I have changed the vlan 2 onto fa0/0/1 now, and there are no additional interfaces on the vlan 2.
okay, let's see what we have:
You have configured the port fa0/0/1 statically to access mode. The log messages
say that you are receiving 802.1Q BPDU on this port.
So it seems that your ISP modem sends tagged frames, that is the port at the modem is
probably configured as a trunk port.
Your switch disables the port due to the configuration missmatch, acces-port on one side
trunk-port on the other.
You could try to configure your interface fa0/0/1 as a trunk port just to check if I'm right:
switchport mode trunk
You are right, I have tested the ISP modem with my laptop so he must be trunking with native vlan 1..
VLAN 1 is already in use.
So i cannot configure the port as a trunk.
If you cannot make it a trunk port, then why dont you apply a bpdufilter on that interface and check if the connection comes up. Under the interface give the command "spanning-tree bpdufilter enable" - i think this must be the command.
It would drop those bpdu packets sent by ISP, and the connection would stay up when bpdu filter is configured.
Let us know if it helped.
If you are running 2 4 port hwic switchcards make sure you have them setup correctly. I believe if you have more than 1 switchcard you must tie them together using 1 port off each switchcard so that it looks like 1 switch otherwise you will have issues. Just something to check to make sure this was done. Make sure your switchcards have been stacked.
Stacking is the connection of two switch modules resident in the same chassis so that they behave as a single switch. When a chassis is populated with two switch modules, the user must configure both of them to operate in stacked mode. This is done by selecting one port from each switch module and configuring it to be a stacking partner. The user must then connect with a cable the stacking partners from each switch module to physically stack the switch modules. Any one port in a switch module can be designated as the stacking partner for that switch module.
Beginning in privileged EXEC mode, follow these steps to configure a pair of ports on two different switch modules as stacking partners.
1. interface fastethernet interface-id
2. no shutdown
3. switchport stacking-partner interface FastEthernet partner-interface-id
5. interface fastethernet partner-interface-id
6. no shutdown
Router(config)#interface fastethernet interface-id
Selects the interface to configure.
Activates the interface. (Required only if you shut down the interface.)
Router(config-if)#switchport stacking-partner interface FastEthernet partner-interface-id
Selects and configures the stacking partner port.
Exits interface configuration mode.
Router(config)#interface fastethernet partner-interface-id
Selects the stacking partner interface.
Activates the stacking partner interface.
Exits configuration mode.
Note Both stacking partner ports must have their speed and duplex parameters set to auto.