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ACI Fex configuration queries
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03-08-2023 05:58 AM
Hi All,
I have ACI fabric setup where some of my servers are connected on the FEX module.urrently i'm planning to move the FEX connectivity from Leaf 1 to Leaf 2.
Can some one confirm post movement of the FEX from Leaf1 to Leaf2 should i need to configure each and every individual interfaces from the new Node or the config will be auto fetch?
For the movement time should i need to create any profile for the Fex module?
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03-08-2023 01:13 PM - edited 03-08-2023 01:15 PM
Hi @Robo123 ,
Let's start with some conceptual points.
Any server attached to a FEX is essentially directly attached to a leaf.
So for each and every server attached to the FEX, moving them to a new leaf (even if physically attached to the same FEX) is moving the server to a new leaf.
In your case, moving the FEX is like moving a line-card from one chassis to another chassis.
So by now, you'll pretty much realise that this probably not going to be easy.
Although this may be able to be refined, here are my suggestions:
- Configure the ports where the FEX is moving to ready for the new FEX, creating a new_FEX_profile
- Make sure you use the same FEX ID as it is at the moment.
- In the ACI GUI, navigate to Fabric > Access Policies >> Interfaces > Leaf Interfaces > Profiles > old_FEX_profile >+ Save as... and save the profile - make sure you select Only Configuration, Subtree and JSON - i.e NONE of the defaults.
- You'll get a file something like my output below - which Visual Studio Code has formatted to look pretty for me
- Look for any reference to the old Leaf ID in the output. If you are using the system generated Leaf and Interface profiles that came with ACI v5.2(7f) then they will look very much like mine.
- Replace these numbers with the leaf ID of the new leaf and save the file.
IMPORTANT - I HAVEN'T BEEN ABLE TO TEST THE REST OF THIS - Move the FEX cabling
- Right click on the new_FEX_profile (actually - right click anywhere in the tree that gives you the Post option) and choose Post
- Make sure the Parent ID is changed to uni/
- Select the file you just saved and click Post
This is the point at which it could all go wrong
- Remove/delete the old FEX Profile
What could go wrong?
Well, particularly if you are using the new system-generated Leaf and Interface Profiles, you may get an error about trying to change system defined stuff.
Apart from that, it would be normal for some errors to appear but they should sort themselves out after a while.
I hope this helps.
Don't forget to mark answers as correct if it solves your problem. This helps others find the correct answer if they search for the same problem.
JSON file of connected servers on FEX
{
"totalCount": "1",
"imdata": [
{
"infraFexP": {
"attributes": {
"annotation": "",
"descr": "",
"dn": "uni/infra/fexprof-system-fex-192-profile-node-1202",
"name": "system-fex-192-profile-node-1202",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"userdom": "all"
},
"children": [
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T03:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T03:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "webserver.t03.dns",
"fromCard": "1",
"fromPort": "13",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "13",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T12:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T12:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "T12 WebServerBM",
"fromCard": "1",
"fromPort": "22",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "22",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T14:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T14:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "T14 WebServerBM",
"fromCard": "1",
"fromPort": "24",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "24",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T17:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T17:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "webserver.t17.dns",
"fromCard": "1",
"fromPort": "27",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "27",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T18:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T18:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "webserver.t18.dns",
"fromCard": "1",
"fromPort": "28",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "28",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T09:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T09:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "T09 WebServerBM",
"fromCard": "1",
"fromPort": "19",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "19",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T04:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T04:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "T04 WebServerBM",
"fromCard": "1",
"fromPort": "14",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "14",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T01:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T01:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "T01 WebServerBM",
"fromCard": "1",
"fromPort": "11",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "11",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T15:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T15:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "T15 WebServerBM",
"fromCard": "1",
"fromPort": "25",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "25",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T11:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T11:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "",
"fromCard": "1",
"fromPort": "21",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "21",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T02:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T02:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "T02 WebServerBM",
"fromCard": "1",
"fromPort": "12",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "12",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T13:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T13:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "T13 WebServerBM",
"fromCard": "1",
"fromPort": "23",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "23",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T10:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T10:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "",
"fromCard": "1",
"fromPort": "20",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "20",
"userdom": "all"
}
}
}
]
}
},
{
"infraHPortS": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-port-selector-accportgrp-T05:SA.Host_APPG",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"type": "range",
"userdom": "all"
},
"children": [
{
"infraRsAccBaseGrp": {
"attributes": {
"annotation": "",
"fexId": "101",
"tDn": "uni/infra/funcprof/accportgrp-T05:SA.Host_APPG",
"userdom": "all"
}
}
},
{
"infraPortBlk": {
"attributes": {
"annotation": "",
"descr": "T05 WebServerBM",
"fromCard": "1",
"fromPort": "15",
"name": "portblock1",
"nameAlias": "",
"toCard": "1",
"toPort": "15",
"userdom": "all"
}
}
}
]
}
},
{
"infraFexBndlGrp": {
"attributes": {
"annotation": "",
"descr": "",
"name": "system-fex-192-profile-node-1202",
"nameAlias": "",
"ownerKey": "",
"ownerTag": "",
"userdom": "all"
},
"children": [
{
"infraRsMonFexInfraPol": {
"attributes": {
"annotation": "",
"tnMonInfraPolName": "",
"userdom": "all"
}
}
}
]
}
}
]
}
}
]
}
RedNectar aka Chris Welsh.
Forum Tips: 1. Paste images inline - don't attach. 2. Always mark helpful and correct answers, it helps others find what they need.
Forum Tips: 1. Paste images inline - don't attach. 2. Always mark helpful and correct answers, it helps others find what they need.
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