vlan up/down

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Sep 2nd, 2008
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hi all,

i have alert that shows

sh int vlan6

Vlan6 is up, line protocol is down

Hardware is EtherSVI, address is 0017.95ab.1130 (bia 0017.95ab.1130)

Description: ProSoft_MAS

Internet address is 172.29.12.1/24

MTU 1500 bytes, BW 100000 Kbit, DLY 100 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 00:21:37, 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: 2

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

3553043 packets input, 356607841 bytes, 0 no buffer

Received 10719 broadcasts, 0 runts, 0 giants, 0 throttles

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

4417091 packets output, 297003733 bytes, 0 underruns

0 output errors, 1 interface resets

0 output buffer failures, 0 output buffers swapped out


copchgasr4#sh vlan-switch


VLAN Name Status Ports

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

1 default active

5 SCADA_LAN active Fa1/1

6 Prosoft active Fa1/2, Fa1/3, Fa1/4, Fa1/5, Fa1/6, Fa1/7, Fa1/8, Fa1/9, Fa1/10, Fa1/11, Fa1/12, Fa1/13, Fa1/14, Fa1/15

1002 fddi-default active


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

1 enet 100001 1500 - - - - - 1002 1003

5 enet 100005 1500 - - - - - 0 0

6 enet 100006 1500 - - - - - 0 0

1002 fddi 101002 1500 - - - - - 1 1003




sh int fa1/2

FastEthernet1/2 is down, line protocol is down

Hardware is Fast Ethernet, address is 0017.59bd.af3a (bia 0017.59bd.af3a)

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

reliability 195/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

"


Received 25134 broadcasts, 0 runts, 0 giants, 0 throttles

3146495 input errors, 1271941 CRC,

0 output errors, 0 collisions, 2 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

copchgasr4#sh int fa1/3

FastEthernet1/3 is up, line protocol is down

Hardware is Fast Ethernet, address is 0017.59bd.af3b (bia 0017.59bd.af3b)

Description: Connection to MDS I-NET 900 AP Radio 172.29.12.100

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

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

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Auto-duplex, Auto-speed

ARP type: ARPA, ARP Timeout 04:00:00

Last input never, 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 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

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

0 input packets with dribble condition detected

706 packets output, 57186 bytes, 0 underruns

0 output errors, 0 collisions, 2 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

copchgasr4#sh int fa1/4

FastEthernet1/4 is up, line protocol is down

Hardware is Fast Ethernet, address is buffer


what does this mean?????

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glen.grant Tue, 09/02/2008 - 10:40
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It means none of the ports that are in vlan 6 are in a connect status so the SVI will be in a up/down state. Once a device in that vlan comes active the SVI will go up/up.

mahesh18 Tue, 09/02/2008 - 10:47
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thanks for reply

i see one inetrface fa1/2 is up /up now

sh int status


Port Name Status Vlan Duplex Speed Type

Fa1/0 20Mb Canopy Ethern notconnect routed full 100 10/100BaseTX

Fa1/1 Connection to MDS connected 5 a-half a-10 10/100BaseTX

Fa1/2 connected 6 a-full a-100 10/100BaseTX

Fa1/3 Connection to MDS notconnect 6 auto auto 10/100BaseTX

Fa1/4 notconnect 6 auto auto 10/100BaseTX

Fa1/5 notconnect 6 auto auto 10/100BaseTX

Fa1/6 notconnect 6 auto auto 10/100BaseTX

Fa1/7 notconnect 6 auto auto 10/100BaseTX

Fa1/8 notconnect 6 auto auto 10/100BaseTX

Fa1/9 notconnect 6 auto auto 10/100BaseTX

Fa1/10 notconnect 6 auto auto 10/100BaseTX

Fa1/11 notconnect 6 auto auto 10/100BaseTX

Fa1/12 notconnect 6 auto auto 10/100BaseTX

Fa1/13 notconnect 6 auto auto 10/100BaseTX

Fa1/14 notconnect 6 auto auto 10/100BaseTX

Fa1/15 notconnect 6 auto auto 10/100BaseTX



sh int vlan6

Vlan6 is up, line protocol is up

Hardware is EtherSVI, address is 0017.95ab.1130 (bia 0017.95ab.1130)

Description: ProSoft_MAS

Internet address is 172.29.12.1/24

MTU 1500 bytes, BW 100000 Kbit, DLY 100 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 00:00:30, 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: 2

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

3553080 packets input, 356611237 bytes, 0 no buffer

Received 10756 broadcasts, 0 runts, 0 giants, 0 throttles

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

4417667 packets output, 297040654 bytes, 0 underruns

0 output errors, 1 interface resets

0 output buffer failures, 0 output buffers swapped out

copchgasr4#



many thanks

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