VTP, VLANs and Trunks with Cisco to NON Cisco Devices

[intelwizrd]

Has anyone had experience with Vlans and VLAN trunking between cisco devices and non cisco devices? Specifically a 3548XL, a 3524XL, a 2924MXL and an HP Procurve 2824 Gigabit switch. We currently are not using Vlans in our environment and I want to set it up. I think i know what i need to between all of the cisco switches and have my vlans configured and VTP set to trnasparent at the moment. however, the HP 2824 provides access to a lot of critical servers. i am unsure of what the config needs to look like on either side. i am pretty sure i will need to use 802.1q encapsulation between the cisco switch and the hp switch. will i also need to use it between all of the cisco switches? i understand the theory just havent had experience implimenting it. Thanks for your help.

----------------------------
Josh
CCNA, MCSE 2003(in progress)

 

[hunterdw]

Hi Josh--

I've never used Procurve, but I've setup VLANs and trunking between 3524/3550/3560/450x and Dell 5224/5234 switches.

Yes, you'll have to do 802.1q trunks

On the Cisco side, just a normal trunk

int gi0/1
switch trunk encaps dot1q
switch trunk native vlan (whatever your native vlan is)
switch mode trunk

On the HP side, you'll need to research how it does the vlan database or trunks

I would set it statically with VLANs until you prove it works... then work on VTP from there using the HP vendor support...

--DW

 

[avilov]

I didn't work with cisco mixed with HP switches. But did work with 3com and others mixed with cisco. and never had any problem with VLANS. Just stick with the dot1q encapsulation and don't use large numbers to name VLANs.

to configure the cisco side you need that:

switchport trunk encapsulation dot1q
switchport mode trunk

and something similar on the HP side

 

[intelwizrd]

here are the configs for the vlans on the cisco side

c3548xl-switch#show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4,
Fa0/5, Fa0/6, Fa0/7, Fa0/8,
Fa0/9, Fa0/10, Fa0/11, Fa0/12,
Fa0/13, Fa0/14, Fa0/15, Fa0/16,
Fa0/17, Fa0/18, Fa0/19, Fa0/20,
Fa0/21, Fa0/22, Fa0/23, Fa0/24,
Fa0/25, Fa0/26, Fa0/27, Fa0/28,
Fa0/29, Fa0/30, Fa0/31, Fa0/32,
Fa0/33, Fa0/34, Fa0/35, Fa0/36,
Fa0/37, Fa0/38, Fa0/39, Fa0/40,
Fa0/41, Fa0/42, Fa0/43, Fa0/44,
Fa0/45, Fa0/46, Fa0/47, Fa0/48,
Gi0/1, Gi0/2
2 VLAN002 active
3 VLAN003 active
10 VLAN0010 active
11 VLAN0011 active
12 VLAN0012 active
13 VLAN0013 active
14 VLAN0014 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

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
10 enet 100010 1500 - - - - - 0 0
11 enet 100011 1500 - - - - - 0 0
12 enet 100012 1500 - - - - - 0 0
13 enet 100013 1500 - - - - - 0 0
14 enet 100014 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 1 1003
1003 tr 101003 1500 1005 - - - srb 1 1002
1004 fdnet 101004 1500 - - 1 ibm - 0 0
1005 trnet 101005 1500 - - 1 ibm - 0 0
c3548xl-switch#sho vtp s
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 254
Number of existing VLANs : 12
VTP Operating Mode : Transparent
VTP Domain Name : vaweb
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x91 0x9C 0x9A 0x48 0xE1 0x1C 0x84 0xEE

regarding the vlan id and the said and the name for that matter, what do they relate to in the hp switch? here is the current vlan config on the hp

HP2824-GE# show vlans

Status and Counters - VLAN Information

Maximum VLANs to support : 8
Primary VLAN : DEFAULT_VLAN
Management VLAN :

802.1Q VLAN ID Name Status
-------------- ------------- -------------
1 DEFAULT_VLAN Static

----------------------------
Josh
CCNA, MCSE 2003(in progress)

 

[hunterdw]

It's a direct 1:1 relationship.

Vlan 1 on Cisco = Vlan 1 on HP

It looks like your HP only does 8 vlans...

so, if on the cisco side vlan 1, 2, 3, 10, 11, 12, 13, 14 all mean something, you'll need to configure 2, 3, 10, 11,12, 13, 14 on the HP.

Then, you'll have to confiure an interface on the HP as a Dot1Q trunk.

Be sure on both the cisco and the HP side you set the SAME VLAN as the native...