I'm looking for some advice here, as I've got a bit of a situation here where things aren't working the way they should. More than likely a config error somewhere on my part. Rather than post too much of the config, which is rather repetitive, I figured I'd outline what we're trying to accomplish and get some guidance.
- I have 3 HP 2848's and need to configure trunk ports between them and between servers connected to them.
- I'm going to use 4 ports to interconnect each of the switches (using a total 8) so that we have a complete "ring".
- SW1 is the main switch which has the cross connects from our colo.
- SW2,SW3 will have the interconnects from each server. Each server will have 4 ports (lacp from OS side) and will have 2 ports to each of two switches.
- We have many vlans that we need to get working between these.
Existing Overview of connections:
- SW1 has ports 5-8 to SW2, ports 9-11 to SW3
- SW2 has ports 5-8 to SW1, ports 9-11 to SW3
- SW3 has ports 5-8 to SW1, ports 9-11 to SW2
- Server 1 has 13,14 on SW2, 13,14 on SW3
- Server 2 has 15,16 on SW2, 15,16 on SW3
- I've attempted to use GVRP, but seems it only gets in the way when attempting to tag/untag vlans (ports and dyn). I attempted to use the "unknown-vlans Block" on each of the ports on the main switch (SW1), and "learn" on the same ports on the other switches. I'm not seeing the vlans automatically created on the other switches, so I think I'm going to give up on GVRP in general. I don't mind having to create the same vlans on each of the switches, but if I can save the time of having to create on each switch, and then add to the trunks/ports on each switch, even better. At the same time, it seems that GVRP is needed to enable vlan tagging on the dynamic ports.
- vlans - before attempting to use lacp/trunk ports they are all working correctly, I can tag/untag at will, etc. With the Dyn1 style trunks that are automatically created, seems it takes some "work" to get get the vlans the way they should be. Sometimes I find that I need to get them out of "auto" mode (caused by gvrp) and then have to change them a few times before it sticks in the GUI. probably need to do more of this in the CLI.
- Switch "trunks" - Based on a few posts/articles I've seen/read, I should be using static "trunks" for the switch interconnects. That would mean using the following on all switches "trunk 5-8 trk1 trunk" and "trunk 9-11 trk2 trunk". Now, should I use lacp or trunk as the last parameter?
- Server connections - I'm tempted to run "interface 12-48 lacp active" on all other ports on all switches, so that as servers are brought online, we get the fault tolerance we're looking for. This should allow us to get the dynamic trunks, but at the same time, I prefer to have the static trunks so we can name these and keep track of it. I don't want a disconnection of a server to cause all the trunks to renumber themselves. I think that the procurve knows this and won't rename/renumber until a reboot.
- Redudant server connections - not sure if the procurve can crate lacp for ports between switches. I'm thinking that it has to, as this would be the only real way of having LACP in a redundant fashion.
Am I on the right path here?
For the dynamic trunks, how can we make sure that all vlans are always tagged on these? Is this where gvrp comes into play?
Thanks in advance,