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- About Gaurav Gambhir
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Member since
04-27-2010
46
Posts
12
Helpful
8
Solutions
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-04-2019
10:15 PM
11-04-2019
10:15 PM
at least in couple of fabric in two different 4.2 versions I see default is ICMP.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-04-2019
09:25 PM
11-04-2019
09:25 PM
In 4.2 we introduced a new cli command "show discoveryissues" which can be run on leaf cli.
the cli basically runs a script in backend and perform multiple checks, certificate check is one of them.
If invalid certificate is the issue, please open a tac case.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-04-2019
09:15 PM
11-04-2019
09:15 PM
seems like those were internal links only, I have reached out to team to check if we can share this externally.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-04-2019
05:14 AM
11-04-2019
05:14 AM
PBR is the feature which can be used to redirect traffic to a different location, however PBR service node cannot be L3out. reconfiguring your external router as service node will require bigger design change and other traffic considerations. One way you can achieve this in ACI is by having dedicated vrf per epg/l3out.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-04-2019
04:38 AM
11-04-2019
04:38 AM
can you provide the whole log from where you define the tftpboot path cli
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-04-2019
04:17 AM
11-04-2019
04:17 AM
with Multisite l2 extension is very easy, refer following :
Cisco ACI Multi-Site Fundamentals Guide, Release 2.0(1) : Stretched EPG Across Sites
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/aci_multi-site/sw/2x/fundamentals/Cisco-ACI-Multi-Site-Fundamentals-Guide-201/Cisco-ACI-Multi-Site-Fundamentals-Guide-201_chapter_011.html
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-04-2019
04:13 AM
11-04-2019
04:13 AM
seems like the issue is with local port on the APIC, there is no specific config required to enable redundant link, this works in active/standby bond. could be a bad port, I would try to replace the VIC.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-04-2019
12:04 AM
11-04-2019
12:04 AM
Apart from what you already mentioned multi-pod, multi-site and remote-leaf. I have seen some configs where customers are using OTV on one NX-OS side and normal EPG on ACI side to extend L2 over legacy routed links.
NX-OS as VTEP is only possible with GOLF which is not L2 extension and the connections towards DCI networks are on the spines not on the leafs.
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/2-x/L3_config/b_Cisco_APIC_Layer_3_Configuration_Guide/b_Cisco_APIC_Layer_3_Configuration_Guide_chapter_010010.pdf
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-03-2019
11:54 PM
11-03-2019
11:54 PM
if you swap the connections towards the leafs, meaning connect first port to leaf2 and 2nd port to leaf1, does the problem follow the port on APIC or the switch, based on this test you will know if the issue is on the APIC side or switch side.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
11-03-2019
11:44 PM
11-03-2019
11:44 PM
probably your IP SLA monitoring policy to TCP, however TCP port suppose to be non-zero.
you can also set the IP SLA monitor policy to ICMP to get around this error.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
10-22-2019
12:30 PM
10-22-2019
12:30 PM
following links gives you a good start understanding what is needed.
ACI Virtualization Compatibility Matrix https://www.cisco.com/c/dam/en/us/td/docs/Website/datacenter/aci/virtualization/matrix/virtmatrix.html
Cisco ACI Installation Guide for Red Hat OpenStack Using OpenStack Platform 10 Director https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/2-x/openstack/osp_director/b_ACI_Installation_Guide_for_Red_Hat_OpenStack_Using_OSP_Director_2_3_x/b_ACI_Installation_Guide_for_Red_Hat_OpenStack_Using_OSP_Director_2_3_x_chapter_010.html
Cisco ACI Unified Plug-in for OpenStack Architectural Overview https://www.cisco.com/c/dam/en/us/td/docs/switches/datacenter/aci/apic/sw/4-x/openstack/Cisco-ACI-Plug-in-for-OpenStack-Architectural-Overview.pdf
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
10-22-2019
10:36 AM
10-22-2019
10:36 AM
It works only when you have VMM integration with ACI.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
10-21-2019
12:55 PM
10-21-2019
12:55 PM
Clearing the TMP is 100% non recoverable in field, this will need RMA. I would suggest to discuss the situation with your Accounts team at Cisco.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
10-21-2019
06:30 AM
10-21-2019
06:30 AM
TPM contains RSA encryption keys for the server, you can try to disable/enable TPM in BIOS, however "DO NOT CLEAR TPM" otherwise RMA will be required.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
in Application Centric Infrastructure
10-21-2019
06:00 AM
10-21-2019
06:00 AM
Multiple uplinks on each spine to IPN is recommended for redundancy, that should not create any issues with PIM, you need to make sure that everyone links b/w IPN devices have lower OSPF Cost IPN devices do not pick spine devices as preferred path to reach RP.
... View more
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-04-2019
11-04-2019
at least in couple of fabric in two different 4.2 versions I see default
is ICMP.
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-04-2019
11-04-2019
In 4.2 we introduced a new cli command "show discoveryissues" which can
be run on leaf cli. the cli ...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-04-2019
11-04-2019
seems like those were internal links only, I have reached out to team to
check if we can share this ...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-04-2019
11-04-2019
PBR is the feature which can be used to redirect traffic to a different
location, however PBR servic...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-04-2019
11-04-2019
can you provide the whole log from where you define the tftpboot path
cli
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-04-2019
11-04-2019
with Multisite l2 extension is very easy, refer following : Cisco ACI
Multi-Site Fundamentals Guide,...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-04-2019
11-04-2019
seems like the issue is with local port on the APIC, there is no
specific config required to enable ...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-04-2019
11-04-2019
Apart from what you already mentioned multi-pod, multi-site and
remote-leaf. I have seen some config...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-03-2019
11-03-2019
if you swap the connections towards the leafs, meaning connect first
port to leaf2 and 2nd port to l...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
11-03-2019
11-03-2019
probably your IP SLA monitoring policy to TCP, however TCP port suppose
to be non-zero. you can also...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
10-22-2019
10-22-2019
following links gives you a good start understanding what is needed. ACI
Virtualization Compatibilit...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
10-22-2019
10-22-2019
It works only when you have VMM integration with ACI.
Created by
Gaurav Gambhir
in Application Centric Infrastructure
10-21-2019
10-21-2019
Clearing the TMP is 100% non recoverable in field, this will need RMA. I
would suggest to discuss th...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
10-21-2019
10-21-2019
TPM contains RSA encryption keys for the server, you can try to
disable/enable TPM in BIOS, however ...
Created by
Gaurav Gambhir
in Application Centric Infrastructure
10-21-2019
10-21-2019
Multiple uplinks on each spine to IPN is recommended for redundancy,
that should not create any issu...
Public Statistics
| Date Registered | 04-27-2010 12:16 PM |
| Date Last Visited | 11-05-2019 11:15 PM |
| Total Messages Posted | 46 |
| Total Helpful Votes Received | 12 |
