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New Member

Port is not accessable

2950#sh int fa0/13 sw

Name: Fa0/13

Switchport: Enabled

Administrative Mode: static access

Operational Mode: static access

Administrative Trunking Encapsulation: dot1q

Operational Trunking Encapsulation: native

Negotiation of Trunking: Off

Access Mode VLAN: 1 (default)

Trunking Native Mode VLAN: 1 (default)

Administrative private-vlan host-association: none

Administrative private-vlan mapping: none

Operational private-vlan: none

Trunking VLANs Enabled: ALL

Pruning VLANs Enabled: 2-1001

Protected: false

Voice VLAN: none (Inactive)

Appliance trust: none

------------------------------------

#sh int fa0/13 tr

Port Mode Encapsulation Status Native vlan

Fa0/13 off 802.1q not-trunking 1

Port Vlans allowed on trunk

Fa0/13 1

Port Vlans allowed and active in management domain

Fa0/13 1

Port Vlans in spanning tree forwarding state and not pruned

Fa0/13 1

--------------------------------------

When i put cable from PC into port fa0/13 - LAN is not accessable. When i run Sniffer-i can see broadcasts and BPDU . But i can't ping switch's IP address. How to resolve it?

6 REPLIES
Cisco Employee

Re: Port is not accessable

What is your management VLAN? fa0/13 is in VLAN 1.

Also is the PC and the management VLAN ip address in the same subnet?

New Member

Re: Port is not accessable

!

interface Vlan1

ip address 172.20.5.14 255.255.0.0

no ip route-cache

!

ip default-gateway 172.20.5.33

----------------------------

PC's ip address - 172.20.7.11/255.255.0.0

dg-172.20.5.33

Cisco Employee

Re: Port is not accessable

Can you paste the output of "sh int vlan 1". Are you able to ping the defaut gateway 172.20.5.33

(1) From the 2950

(2)From the PC

Also are you seeing this problem only from a PC on fa0/13 or other ports affected as well?

New Member

Re: Port is not accessable

# sh int vlan 1

Vlan1 is up, line protocol is up

Hardware is CPU Interface, address is 000b.5f84.3140 (bia 000b.5f84.3140)

Internet address is 172.20.5.14/16

MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

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 7000 bits/sec, 7 packets/sec

5 minute output rate 12000 bits/sec, 19 packets/sec

97831714 packets input, 2076502324 bytes, 0 no buffer

Received 93004662 broadcasts, 0 runts, 0 giants, 57624 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 871311 ignored

149631195 packets output, 3530546260 bytes, 0 underruns

0 output errors, 2 interface resets

0 output buffer failures, 0 output buffers swapped out

---------------------

#ping 172.20.5.33

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 172.20.5.33, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms

-------------------------

From PC- failed.

When i insert cable from that PC into another port - port fa0/19 -LAN is accessable!

-----------------

#sh int fa0/19 sw

Name: Fa0/19

Switchport: Enabled

Administrative Mode: dynamic desirable

Operational Mode: static access

Administrative Trunking Encapsulation: dot1q

Operational Trunking Encapsulation: native

Negotiation of Trunking: On

Access Mode VLAN: 1 (default)

Trunking Native Mode VLAN: 1 (default)

Administrative private-vlan host-association: none

Administrative private-vlan mapping: none

Operational private-vlan: none

Trunking VLANs Enabled: ALL

Pruning VLANs Enabled: 2-1001

Protected: false

Voice VLAN: none (Inactive)

Appliance trust: none

-----------------------------------

New Member

Re: Port is not accessable

Strange-i reloaded switch - and now port fa0/13 is accessable!

New Member

Re: Port is not accessable

Hello,

our customer has experienced frequent occurence of this problem. The only solution we know is reload, which is not always acceptable. Since there is arout one hundred of 2950 in customer's network, I feel very anxious :( .Does anyone know better solution?

Thanks

Stepan

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