I think your setup is configured in a workable manner (with the exclusion of
RVI's, but you were referring to strict switching anyway and not L3
termination).
The example from production I'll give uses AE (Aggregated Ethernet links, or
multiple ethernet links bonded together) to form the link between the two
switches, which then pass vlans across the switched path. You could substitute
this for a regular physical interface. As you see, with the exception of a few
choices, our configurations are similar-
=====
Switch-a
=====
# show interfaces ae0
description "nap-r14-pub-1 - vlan 3914 - ge/0/0/46-47";
mtu 9216;
aggregated-ether-options {
link-speed 1g;
lacp {
active;
}
}
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [ 3914 3951 2102-2149 hvpubn14 hvclustmgmt2 2150-2320
2321-2349 ];
}
}
}
{master:1}[edit]
=====
Switch-b
=====
# show interfaces ae0
mtu 9216;
aggregated-ether-options {
lacp {
active;
}
}
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [ 3914 3951 2102-2149 hvpubn14 hvclustmgmt2 2150-2320
2321-2349 ];
}
}
}
[edit]
1) establish the unit0 subinterface as a trunk port
2) designate the vlan membership
3) be sure you've done this on both sides.
I noticed in your setup you turned off flow-control. Is there a specific reason
you did that? We run iSCSI sans for hundreds of VPS' and we leave it on (by
default). Also, we run 9216 MTU for better performance on these links.
Dan Farrell
[email protected]
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Paul Waller
Sent: Monday, February 22, 2010 5:25 AM
To: [email protected]
Subject: [j-nsp] (no subject)
Hi all,
Sorry but abit of a novice when it comes to layer2 switching and Juniper
switches.
What I think I need to do is trunk between 2 junipers EX3200 switches, int
g0/0/0 connects to the router & int g0/0/1 connects to the other juniper. 1
switch will trunk between between the junipers & then have a trunk port to the
router. It is only for 2 vlans, voice & data. If anyone has a config snippet
on how I do this it would be appreciated.
router <-------->switch 1<-------->switch 2
My config of switch 1:
interfaces {
ge-0/0/0 {
apply-macro juniper-port-profile {
Desktop;
}
description "Wan Router";
mtu 1514;
ether-options {
auto-negotiation;
no-flow-control;
link-mode automatic;
speed {
auto-negotiation;
}
}
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [VOICE-VLAN DATA-VLAN];
}
}
}
}
ge-0/0/1 {
apply-macro juniper-port-profile {
Desktop;
}
description "Connection to Juniper switch EX3200";
mtu 1514;
ether-options {
auto-negotiation;
no-flow-control;
link-mode automatic;
speed {
auto-negotiation;
}
}
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [VOICE-VLAN DATA-VLAN];
}
}
}
}
Switch 2 trunk config:
---------------------
ge-0/0/0 {
apply-macro juniper-port-profile {
Desktop;
}
description "Connection to Juniper switch EX3200";
mtu 1514;
ether-options {
auto-negotiation;
no-flow-control;
link-mode automatic;
speed {
auto-negotiation;
}
}
unit 0 {
family ethernet-switching {
port-mode trunk;
vlan {
members [VOICE-VLAN DATA-VLAN];
}
}
}
}
Regards
Paul
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