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Re: hp 2910al switch trunking and basic understanding

 
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Pieter 't Hart
Honored Contributor

Re: hp 2910al switch trunking and basic understanding

Most info is allready in the previous answers.

3. How would I configure Switch-2 to talk with Switch-1 subnet.
you need a router to enable communication between different subnets.
when both subnets are used on different vlans, this router must have two interfaces, one in each vlan/subnet.

this can be done by the firewall, or by one of the switches

If you use switch-1 for this, switch-2 does not do any routing and only needs an ip-adress for management.

you need to make switch-2's vlan avalable on switch-1
you do this by configuring the vlans on the ports that connect the switches
(untagged/tagged or both tagged)
lets say port 24 both switches
>>>
vlan1
untagged 24
vlan2
tagged 24
<<<
you configure the ip-adress not on the interface, but on the vlan.
switch-1
>>>
vlan1
ip adress 180.10.1.1/24
vlan2
ip adress 180.10.2.1/24
ip helper (for dhcp-relay)
<<<
switch-2
>>>
vlan1
ip adress 180.10.1.2/24
vlan2
ip adress 180.10.2.2/24 (not really necessary)
<<<
and enable routing on switch-1
>>>
ip routing
ip route 0.0.0.0 0.0.0.0
<<<
+ firewall will have a return route for 180.2.10.0/24 network. to switch-1
Deeps
New Member

Re: hp 2910al switch trunking and basic understanding

Can any one help me. what type of cable is required for trunking between two switches ?

Arimo
Respected Contributor

Re: hp 2910al switch trunking and basic understanding

Hi Deeps

 

Doesn't matter. The rules for trunking (Link Aggregtion) are simple.

 

- the members of the trunk must be same speed/duplex - no trunking 100Mb/s port with a Gig port

- the members of the trunk must be same media type - no trunking Fiber with Copper

- the members of the trunk must be co-terminating - no connecting Switch A port 1 to Switch B and Switch A port 2 to Switch C

 

I assume we're talking about normal Link Aggregation, not Distributed Trunking. If you're doing DT the third rule doesn't exist.


HTH,

Arimo
HPE Networking Engineer