<div dir="ltr"><p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Century Gothic",sans-serif">Spot
on, Jason. Since each SW pair is treated as a single switch (logically) you can
run a single port channel between them. </span></p><p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">
</p><p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Century Gothic",sans-serif">Your
suggested setup is also ideal for data center interconnects and multi-layer vPC
environment.</span></p><p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Century Gothic",sans-serif"><br></span></p><p class="MsoNormal" style="margin:0cm 0cm 8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Century Gothic",sans-serif">Ahad</span></p><br><div class="gmail_quote"><div dir="ltr">On Mon, Nov 26, 2018 at 2:21 PM Jason Leschnik <<a href="mailto:jason@leschnik.me">jason@leschnik.me</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Oh and obviously the normal
😁<div><br></div><div><font face="monospace, monospace">feature lacp ; feature vpc ; feature interface-vlan </font></div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, 26 Nov 2018 at 14:19, Jason Leschnik <<a href="mailto:jason@leschnik.me" target="_blank">jason@leschnik.me</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi all,<div><br></div><div>With vPC on both pairs, all 4 links between the pairs can be aggregated into a single port-channel like the one pictured below. Practically you're going to setup two different vPC domains (vpc domain 1, vpc domain 2 for example) on the two pairs (11,12) and (13,14). With a port-channel configuration like the following example:</div><div><br></div><div>Assuming e1/1-2 are the downstream links (between pairs) and e1/10-11 are the links between vPC peer switches</div><div><br></div><div><b># Setup vPC</b></div><div><font face="monospace, monospace" size="1">sw11# vpc domain 11 ; peer-keepalive destination <mgmt-ip sw12> ; int e1/10-11 ; channel-group 1 mode active ; int po1 ; vpc peer-link ; peer-switch ; peer-gateway</font></div><div><font size="1"><font face="monospace, monospace">sw12# vcp domain 11 ; peer-keepalive destination <mgmt-ip sw11> ; int e1/10-11 ; channel-group 1 mode active ; int po1 ; vpc peer-link </font><span style="font-family:monospace,monospace">; peer-switch ; peer-gateway</span></font></div><div><font face="monospace, monospace" size="1"><br></font></div><div><font size="1"><font face="monospace, monospace">sw13# vpc domain 13 ; peer-keepalive destination <mgmt-ip sw14> ; int e1/10-11 ; channel-group 1 mode active ; int po1 ; vpc peer-link </font><span style="font-family:monospace,monospace">; peer-switch ; peer-gateway</span></font></div><div><font size="1"><font face="monospace, monospace">sw14# vpc domain 13 ; peer-keepalive destination <mgmt-ip sw13> ; int e1/10-11 ; channel-group 1 mode active ; int po1 ; vpc peer-link </font><span style="font-family:monospace,monospace">; peer-switch ; peer-gateway</span></font></div><div><span style="font-family:monospace,monospace"><br></span></div><div><font face="monospace, monospace">! Peer-switch will allow both vPC peers to propagate the same STP BPDU information by sharing a vMAC</font></div><div><font face="monospace, monospace">! Peer-gateway allows the partner to route on behalf of the other, this gets around some non-RFC behavior seen in certain NAS vendors products when using FHRP</font></div><div><font face="monospace, monospace">! It's perfectly fine to use mgmt0 interfaces for the peer-keepalive, it's a stream of UDP packets to src/dst port 3200. This link can go down with no ill effect on vPC</font></div><div><font face="monospace, monospace">! Note conventions for numbering of port-channels and domains is just for example, use whatever numbering system works for you</font></div><div><br></div><div><b># Setup the port-channels</b></div><div><font face="monospace, monospace" size="1">sw11# int e1/1-2 ; channel-group 1314 mode active ; int po1314 ; vpc</font></div><div><font face="monospace, monospace" size="1">sw12# int e1/1-2 ; channel-group 1314 mode active ; int po1314 ; vpc</font></div><div><font face="monospace, monospace" size="1"><br></font></div><div><font face="monospace, monospace" size="1">sw13# int e1/1-2 ; channel-group 1112 mode active ; int po1112 ; vpc</font></div><div><font size="1"><font face="monospace, monospace">sw14# int e1/1-2 ; channel-group 1112 mode active ; int po1112 ; vpc </font> </font></div><div><br></div><div><div><img alt="vpc.png" width="405" height="270" style="margin-right:0px"><br></div></div><div><br></div><div>Regards,</div><div>Jason.</div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, 26 Nov 2018 at 11:10, Ahad Aboss <<a href="mailto:ahad@swiftelnetworks.com" target="_blank">ahad@swiftelnetworks.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr"><div>Radeck,</div><div><br></div><div>To avoid blocked ports, you will need to configure your upstream links as follows;</div><div><br></div><div>Built a port-channel from SW13 to SW11/12. </div><div>Build a port-channel from SW14 to SW11/12.</div><div><br></div><div>Physically, SW 11 and 12 looks as 2 x Switches but logically, SW 13 and 14 treats SW11/12 as a single switch.</div><div><br></div><div>I suggest using at least 2 x 10GE ports between SW13 & 14 as SFP's do fail from time to time.</div><div>You can use MGM for peer link keep alive or a dedicated link.</div><div><br></div><div>You can increase your port-channel capacity as your traffic grows. </div><div><br></div><div>Ahad</div></div><br><div class="gmail_quote"><div dir="ltr">On Mon, Nov 26, 2018 at 10:16 AM Radek Tkaczyk <<a href="mailto:radek@tkaczyk.id.au" target="_blank">radek@tkaczyk.id.au</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-AU" link="#0563C1" vlink="#954F72">
<div class="m_-648909641051732474m_-5856129558466928228m_2322091966752553763m_-1141457219660753690WordSection1">
<p class="MsoNormal"><span style="color:#1f497d">Hi Guys,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">So from the feedback so far is that we should also link SW-13 and SW-14 directly – updated as below.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">The primary purpose for this design is to ensure redundancy across switches, and to be able to provide approx. 50 x 10Gbps ports, and 50 x 1 Gbps ports – this also leaves heaps of room for growth as well.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Still looking for someone to go over the config with, so if you are interested (paid gig) please let me know.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span><img width="619" height="228" id="m_-648909641051732474m_-5856129558466928228m_2322091966752553763m_-1141457219660753690Picture_x0020_1"></span><span style="color:#1f497d"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Thanks<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Radek<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<div>
<div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> AusNOG [mailto:<a href="mailto:ausnog-bounces@lists.ausnog.net" target="_blank">ausnog-bounces@lists.ausnog.net</a>]
<b>On Behalf Of </b>Radek Tkaczyk<br>
<b>Sent:</b> Sunday, 25 November 2018 4:34 PM<br>
<b>To:</b> Jacob Taylor <<a href="mailto:me@jacobtaylor.id.au" target="_blank">me@jacobtaylor.id.au</a>><br>
<b>Cc:</b> <<a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a>> <<a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a>><br>
<b>Subject:</b> Re: [AusNOG] Assistance with Cisco vPC configuration on 4 x Cisco Nexus 3000 switches<u></u><u></u></span></p>
</div>
</div>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Hi Jake, <span style="font-size:12.0pt">
<u></u><u></u></span></p>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
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<div>
<p class="MsoNormal">That’s something that I wanted to check if it was needed/recommended.<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
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<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">Can certainly put it in if it will help achieve better performance and redundancy<u></u><u></u></p>
<div>
<p class="MsoNormal">Thanks<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Radek<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
On 25 Nov 2018, at 4:26 pm, Jacob Taylor <<a href="mailto:me@jacobtaylor.id.au" target="_blank">me@jacobtaylor.id.au</a>> wrote:<u></u><u></u></p>
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<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
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<p class="MsoNormal">Hi Radek, <u></u><u></u></p>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Not personally familiar with vPC, more so Arista MLAG and Juniper MC-AE.<u></u><u></u></p>
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<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">In the diagram there isn’t a peer link between 13 & 14 - is that a mistake in the diagram or the actual design?<u></u><u></u></p>
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<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">If you intend to build 2x20G bonds to two standalone nexus switches, that’ll work fine.<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">If you are trying to achieve a 40G bowtie between the two pairs I’m fairly certain that won’t work (unless Cisco has some special black magic to transport signalling/MAC synchronisation over the bond itself).<u></u><u></u></p>
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<div>
<p class="MsoNormal"><u></u> <u></u></p>
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<div>
<p class="MsoNormal">Cheers, <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">Jake<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
On 25 Nov 2018, at 15:04, Radek Tkaczyk <<a href="mailto:radek@tkaczyk.id.au" target="_blank">radek@tkaczyk.id.au</a>> wrote:<u></u><u></u></p>
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<p class="MsoNormal">Hi Guys,<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">I have a need to configure vPC on 4 x Cisco Nexus 3000 switches at one of our data centres – a design that we will replicate to other data centres as well.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">I think I have the config down pat, but I’d like someone with another pair of eyes to go over it with me to ensure it’s 100% correct.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Is there anyone who can give me a hand here with this configuration, happy to pay for someone’s time to go over it to ensure we are doing this correctly.<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">The Physical setup that I’m looking for:<u></u><u></u></p>
<p class="MsoNormal"><span> </span><u></u><u></u></p>
<p class="MsoNormal"><span> </span><u></u><u></u></p>
<p class="MsoNormal"><span><image001.png></span><u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Thanks<u></u><u></u></p>
<p class="MsoNormal"> <u></u><u></u></p>
<p class="MsoNormal">Radek<u></u><u></u></p>
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