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Compudyne has offered to donate an EX4200 with a 2x10G uplink card to MICE to help the cause. On Tue, Sep 20, 2016 at 3:31 PM, Jeremy Lumby <[log in to unmask]> wrote: > I am in favor of a regular layer 2 uplink. I think the main reason I feel > this way is it is industry standard, and then the switch has its own > forwarding table. We have seen issues in the past where if the link on a > high volume port goes down, the MAC gets removed from the forwarding table, > and then all of that traffic gets flooded to all other ports until BGP > times out. This seems to be especially problematic when it hits the 1G > ports. > > My vision of a future upgrade would be something along the lines of a > 5200, or equiv from another manufacturer that has all of the other switches > uplinked to it. Then we would have separate forwarding tables, a place to > connect remote switches, as well as something that has some 40G, and 100G > capabilities. All of the uplinks would then be easy to monitor/graph > without excessive load on the switch. Copper SFP+/QSFP+ cables can be used > between switches and they are affordable/easy to come by. > > Jeremy > > -----Original Message----- > From: MICE Discuss [mailto:[log in to unmask]] On Behalf Of > Doug McIntyre > Sent: Tuesday, September 20, 2016 3:15 PM > To: [log in to unmask] > Subject: Re: [MICE-DISCUSS] EX4200 (1G Switch) Packet Loss -> 10G > Participants > > On Tue, Sep 20, 2016 at 02:23:00PM -0500, Jeremy Lumby wrote: > > That would make sense, then we are just down to how traffic can leave > the 4200 without going across a vcp > > Most likely we'd have to kick off (umm. move) the three members that > are fiber 1G connections in the expansion slot on the 4200, get a 10G > card, optics for both sides, etc. Then decide if we are going to run > virtual chassis protocol, or just layer-2 uplink into the two other > switches. > > Or we move the 19 active 1G copper members + 3 1G fiber members off the > 4200 > altogether and eat up ports on the 4550 with 19 copper SFPs. Then we > wouldn't > have to do "Mixed-mode Virtual-Chassis" then either. > > > Although- it looks like so far all the paths with loss seem to have > "vcp-1" in them? > > As I've stated multiple times, I think since VCP is active/passive, > there is only one active ring around the the VC through VCP-1 now, > and I would expect to see vcp-1 in all paths through the EX4200. > > We can swap active and passive with the command I posted previously. > That way we can troubleshoot if there is a port/cable issue, or if it is > an issue with the device itself. > > Or it could be a defect in this coderev (although I doubt it). > > > -- > Doug McIntyre <[log in to unmask]> > ~.~ ipHouse ~.~ > Network Engineer/Provisioning/Jack of all Trades > -- Jay Hanke CTO Neutral Path Communications 3 Civic Center Plaza, Suite 204 Mankato, MN 56001 (507) 327-2398 mobile [log in to unmask] www.neutralpath.net