From: Hobbs (deadheadblues@gmail.com)
Date: Mon Dec 08 2008 - 19:04:47 ARST
Hello my friends,
I have 2 questions regarding voice vlans:
1) Is it possible to test voice vlan by using subinterface and dot1q
encapsulation on a router port:
R1----SW1----SW2----R2
R1 has a subinterface with "encap dot1q 2".
SW1 has "voice vlan 2" on port to R1.
Link SW1-SW2 is a trunk with all VLANs allowed.
R2 is in vlan 2.
R1's config:
interface Ethernet0/0
!
interface Ethernet0/0.2
encapsulation dot1Q 2
ip address 139.1.2.101 255.255.255.0
SW1:
interface FastEthernet0/1
switchport access vlan 11
switchport mode access
switchport voice vlan 2
spanning-tree portfast
Should R1 be able to ping R2 at 139.1.2.2 ? As of right now, I am not able
to. When I debug icmp, packets from R2 reach R1, but packets from R1 never
get to R2. Looks like SW1 is not sending packets from the voice vlan over
its trunk to SW2.
2) What vlan # is used when you configure "switchport voice vlan dot1p"? How
does the switch know when to send traffic TO this port on the voice vlan.
thank you,
Blogs and organic groups at http://www.ccie.net
This archive was generated by hypermail 2.1.4 : Thu Jan 01 2009 - 12:53:08 ARST