tag:blogger.com,1999:blog-3266263034124005485.post14280307430708603..comments2024-03-24T23:19:30.504+00:00Comments on Fragmentation Needed: Building Nexus vPC Keepalive Linkschris margethttp://www.blogger.com/profile/09716555871346949419noreply@blogger.comBlogger46125tag:blogger.com,1999:blog-3266263034124005485.post-25800022606732299162023-02-18T14:18:33.297+00:002023-02-18T14:18:33.297+00:00Most quality shed plans will likewise accompany a ...Most quality shed plans will likewise accompany a materials list-a significant piece of any arrangement whether you draw it yourself or buy one.<br /><a href="https://shedbuilderlexingtonky.com/" rel="nofollow">kit homes</a>Sinen Yokuhttps://www.blogger.com/profile/03050644533130699426noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-41270194292252800152023-02-18T14:10:24.997+00:002023-02-18T14:10:24.997+00:00This comment has been removed by the author.Shona67https://www.blogger.com/profile/07621790831688145226noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-37064870083883635422022-02-01T13:08:32.063+00:002022-02-01T13:08:32.063+00:00This is my first time i visit here. I found so man...This is my first time i visit here. I found so many interesting stuff in your blog especially its discussion. From the tons of comments on your articles, I guess I am not the only one having all the enjoyment here keep up the good work <a href="https://luxurylifehomes.com/building/trump-royale" rel="nofollow">building trump royale Condos</a>waqashttps://www.blogger.com/profile/12845958984775582595noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-27004973843995043802021-10-07T15:33:21.017+01:002021-10-07T15:33:21.017+01:00This was a really great contest and hopefully I ca...This was a really great contest and hopefully I can attend the next one. It was alot of fun and I really enjoyed myself.. <a href="https://conceptcleaning.de/treppenhausreinigung" rel="nofollow">Treppenhausreinigung Braunlage</a><br />alamhttps://www.blogger.com/profile/14289136721847681290noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-9921687493446076312021-09-30T19:50:53.772+01:002021-09-30T19:50:53.772+01:00On the off chance that a structure is let to a dec...On the off chance that a structure is let to a decent quality occupant for an extensive stretch then the rental pay is guaranteed regardless of whether economic situations for property are unstable. <a href="https://www.highrisescondos.com/" rel="nofollow">los angeles luxury condos for rent</a><br />abarie1https://www.blogger.com/profile/08808852934851082310noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-71020900411434570952021-09-19T06:49:08.390+01:002021-09-19T06:49:08.390+01:00Stagers are extremely ingenious and can take certa...Stagers are extremely ingenious and can take certain components of the home and once again reason and reuse to help the mortgage holder set aside cash. <a href="https://www.highrisescondos.com/buildings/" rel="nofollow">condo leasing</a><br />CheaterSykohttps://www.blogger.com/profile/02998395808426336591noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-72590566376822432622021-09-18T06:56:54.318+01:002021-09-18T06:56:54.318+01:00This comment has been removed by the author.CheaterSykohttps://www.blogger.com/profile/02998395808426336591noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-17358086419088347432021-08-24T08:56:15.691+01:002021-08-24T08:56:15.691+01:00This is highly informatics, crisp and clear. I thi...This is highly informatics, crisp and clear. I think that everything has been described in systematic manner so that reader could get maximum information and learn many things. <a href="https://conceptcleaning.de/" rel="nofollow">Treppenhausreinigung Einbeck</a><br />sameerhttps://www.blogger.com/profile/11479874470572537361noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-19853974860019983122021-08-12T18:40:50.584+01:002021-08-12T18:40:50.584+01:00Machos Gracias for your post. Much thanks again.
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Thanks for your thoughts on the matter. ...Hi Matt,<br /><br />Thanks for your thoughts on the matter. I did similar research, came to the same conclusion.<br /><br />Much of my decision in this regard hinges on the fact that 169.254/16 was designated for "link local" use long before RFC3927 came around. The document (dated 2005) mentions the fact that Win98 was already using this address block. RFC3927 didn't invent the block, it's merely trying to improve interoperability between devices auto configuring themselves within the same broadcast domain.<br /><br />One other detail: I don't think the network devices in question actually know that this /16 is special. Of course, that may change :)chris margethttps://www.blogger.com/profile/06646973209424821070noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-52247944359523571112016-05-27T18:07:08.251+01:002016-05-27T18:07:08.251+01:00I just wanted to add a bit of clarification regard...I just wanted to add a bit of clarification regarding your use of link local addressing on the vPC keepalive link, since while it works, I was not sure if it is RFC compliant. As you mentioned, you're not using RFC3927 auto-configuration. RFC3927 states the following:<br /><br />1.6. Alternate Use Prohibition<br /><br /> Note that addresses in the 169.254/16 prefix SHOULD NOT be configured<br /> manually or by a DHCP server.<br /> ...<br /> Administrators wishing to configure their own local addresses (using<br /> manual configuration, a DHCP server, or any other mechanism not<br /> described in this document) should use one of the existing private<br /> address prefixes [RFC1918], not the 169.254/16 prefix.<br /><br />The rationale stated in the RFC is that that this could cause the host not to follow special rules regarding duplicate detection and auto-configuration. However, this isn't relevant to our particular use case because this is a direct link with no other devices on the same L2 segment. No other devices should ever exist on this segment, and therefore duplicate detection should not be required.<br /><br />RFC2119 states the following about the wording “SHOULD NOT”:<br /><br />SHOULD NOT This phrase, or the phrase "NOT RECOMMENDED" mean that<br /> there may exist valid reasons in particular circumstances when the<br /> particular behavior is acceptable or even useful, but the full<br /> implications should be understood and the case carefully weighed<br /> before implementing any behavior described with this label.<br /><br />Therefore, since we understand the full implications of the link local address space, I believe using link local address space on vPC keepalive links (or other similar links) is a valid use of the address space as per the RFC.<br />Matt Haedohttps://www.blogger.com/profile/13981030801587752067noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-15000468935883492372016-04-20T14:44:59.652+01:002016-04-20T14:44:59.652+01:00Great article,
Maybe one can solve a problem for m...Great article,<br />Maybe one can solve a problem for me, involving vpc's and private-vlans.<br />At my company we use vpc's between Nexus 5k (vpc) and ASR9k(mlacp). The vpc portchannel are configured as a trunk with vlans allowed (lacp).<br />Now we want to change it to "switchport mode private-vlan trunk promiscuous".<br />I have done some testing, when removing the configuration and pasting the private-vlan config, there will be outage.<br /><br />All the technics like "Graceful Consistency Check" and "lacp suspend-individual", are in place.<br /><br />Is there a way to change this configuration without outage?<br />Is the solution in: 2. Use an SVI and VLAN (of above article)?<br /><br />I really appreciate a reply.brutus850noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-16509601047641045392016-03-14T19:26:55.956+00:002016-03-14T19:26:55.956+00:00Peer keepalive is an application flow. It has sour...Peer keepalive is an application flow. It has source and destination IP addresses. IP addresses/interfaces/tables are things that make sense in the context of VRF.<br /><br />Peer link, on the other hand is an L2-only construct. It knows nothing about IP addresses. Heck, the peer link and vPCs associated might be transporting something other than IP traffic. VRF isn't a concept that really applies to a physical link (which might be doing transport for several VRFs.)chris margethttps://www.blogger.com/profile/06646973209424821070noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-27568755393952685642016-03-14T17:45:36.290+00:002016-03-14T17:45:36.290+00:00Hi everyone
can some one explain, y we will place...Hi everyone<br /><br />can some one explain, y we will place peer-keepalive in vrf management domain, but not peer-linkAnonymoushttps://www.blogger.com/profile/00499400462895053028noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-72024549479391187452015-04-09T12:05:48.495+01:002015-04-09T12:05:48.495+01:00*IF* you want to have non-vPC VLANs, then they'...*IF* you want to have non-vPC VLANs, then they'll need their own cross connect.<br /><br />Having non-vPC VLANs isn't a foregone conclusion, however. It depends on your requirements.chris margethttps://www.blogger.com/profile/06646973209424821070noreply@blogger.comtag:blogger.com,1999:blog-3266263034124005485.post-57357994021358542762015-04-09T12:03:59.075+01:002015-04-09T12:03:59.075+01:00I think you've found all of my Nexus stuff. Bi...I think you've found all of my Nexus stuff. Big decision for you is going to be whether you dual home the FEXen. This decision will probably hinge on the equipment this network will be supporting, and it's redundancy needs.chris margethttps://www.blogger.com/profile/06646973209424821070noreply@blogger.com