From: Foster, Alexander (afoster@cnr.edu)
Date: Wed Oct 30 2002 - 11:21:38 GMT-3
I think it is because you still have a FastEthernet port (0/22) in vlan
80
-----Original Message-----
From: chenyan [mailto:chenyan@deeptht.com.cn]
Sent: Wednesday, October 30, 2002 12:08 AM
To: ccielab
Subject: vlan allowed
hi,guys
R1------------------switch
R1 connected to switch 2900 had several subinterfaces to the trunk the
siwtch built, but the switch allowed only a little vlans to be
advertised through the trunk. I used the command "switchport trunk
allow vlan remove 80", but when I saw the output of the command "show
interfa 0/8 switchport", it said that there were still the vlan 80
active in the trunk. why ? The configuraton is flowering.
R1
interface FastEthernet0/0.20
encapsulation isl 20
no ip redirects
bridge-group 1
!
interface FastEthernet0/0.30
encapsulation isl 30
no ip redirects
bridge-group 1
!
interface FastEthernet0/0.50
encapsulation isl 50
no ip redirects
bridge-group 1
!
interface FastEthernet0/0.70
encapsulation isl 70
no ip redirects
bridge-group 1
2900:
interface FastEthernet0/1
!
interface FastEthernet0/2
!
interface FastEthernet0/3
!
interface FastEthernet0/4
switchport access vlan 20
!
interface FastEthernet0/5
!
interface FastEthernet0/6
!
interface FastEthernet0/7
!
interface FastEthernet0/8
switchport mode trunk
!
interface FastEthernet0/9
!
interface FastEthernet0/10
!
interface FastEthernet0/11
!
interface FastEthernet0/12
switchport access vlan 50
!
interface FastEthernet0/13
!
interface FastEthernet0/14
!
interface FastEthernet0/15
!
interface FastEthernet0/16
!
interface FastEthernet0/17
!
interface FastEthernet0/18
!
interface FastEthernet0/19
!
interface FastEthernet0/20
!
interface FastEthernet0/21
switchport access vlan 30
!
interface FastEthernet0/22
switchport access vlan 80
!
interface FastEthernet0/23
!
interface FastEthernet0/24
!
interface VLAN1
no ip directed-broadcast
no ip route-cache
shutdown
!
interface VLAN70
ip address 137.1.70.7 255.255.255.0
no ip directed-broadcast
no ip route-cach
the sh interfaces fastEthernet 0/8 switchport output:
cat5000#sh interfaces fastEthernet 0/8 switchport
Name: Fa0/8
Switchport: Enabled
Administrative mode: trunk
Operational Mode: trunk
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: ALL
Trunking VLANs Active: 1-5,7,10,11,20,21,30,50,66,70,80
Pruning VLANs Enabled: 2-1001
Priority for untagged frames: 0
Override vlan tag priority: FALSE
Voice VLAN: none
Appliance trust: non
but the sh interfaces fastEthernet 0/8 pruning seemed that it was
correct. but why?
cat5000#sh interfaces fastEthernet 0/8 pruning
Port Vlans pruned for lack of request by neighbor
Fa0/8 NONE
Port Vlans traffic requested of neighbor
Fa0/8 1,20,30,50,70
This archive was generated by hypermail 2.1.4 : Tue Nov 05 2002 - 08:35:59 GMT-3