<div dir="ltr">bryan - <div><br></div><div>i'm not entirely clear as to what you're trying to do here. when you're talking about turning up MPLS/LDP between a pair of neighbors, i assume one of these neighbors is the aforementioned 7050SX? (which has pretty limited MPLS capabilities) if so, i would expect that to have limited/unpredictable results. the control plane likely does its thing, the linkages to the forwarding plane for the X-series is another matter.</div><div><br></div><div>your last paragraph is a reasonable summary of the state of things wrt to X-series switches. though there are some operations that are supported. (see <a href="https://eos.arista.com/eos-4-23-0f/mpls-support-on-x-series-switches/">https://eos.arista.com/eos-4-23-0f/mpls-support-on-x-series-switches/</a>)</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jan 25, 2021 at 11:58 AM Bryan Holloway <<a href="mailto:bryan@shout.net">bryan@shout.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I think I already know the answer to this, but here goes:<br>
<br>
Arista DCS-7050SX-64<br>
Hardware version: 02.10<br>
Software image version: 4.21.10M<br>
<br>
Was successful in turning up MPLS/LDP between a pair of neighbors no <br>
problem.<br>
<br>
I can see the peers and addresses bound to those peers, etc.<br>
<br>
However, when I bring up BGP to a pair of upstream RRs, I run into MTU <br>
issues. 1496 bytes (no DF) works fine; 1500 does not.<br>
<br>
As soon as I kill MPLS, it works.<br>
<br>
From the docs I've read and the usual Google-cranking, I get the <br>
impression that the 7050 will happy "pass-through" MPLS traffic, but it <br>
won't let you terminate anything on that particular L3 switch.<br>
<br>
Is that a correct assumption?<br>
<br>
Seems to work fine on the 7280s.<br>
<br>
Thank you all in advance,<br>
<br>
- bryan<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature">steve ulrich (sulrich@botwerks.*)</div>