On Sun, Jun 19, 2011 at 4:10 PM, <[email protected]> wrote: > Show ip route:
VLANs and IP routing are two different layers. Conflating the two leads to confusion. > From the laptop I can ping the Procurve switch but anything on the 4510 side > (native vlan) The above sentence appears to be missing words. > If this was just Cisco, I would guess it to be a trunking problem but I > understand Procurve trunking is like Cisco's etherchannel. "VLAN trunks" are a Ciscoism that doesn't exist in the 802.1Q protocol. An Ethernet frame either has a VLAN tag, or it doesn't. If it has a tag, the tag specifies the VLAN the frame is associated with. If a frame lacks a tag, it's up to the switch to decide what to do with the frame. It's also up to the switch to decide what frames to emit on a port, and if/how to tag them. IIRC, in Cisco-land, a "VLAN trunk port" is a port that tags all frames it emits, and expects to receive the same. Here's my standard response to VLAN questions: http://www.mail-archive.com/[email protected]/msg58753.html -- Ben ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
