This has some failover info it:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-5/exwy_b_mra-expressway-deployment-guide/exwy_b_mra-expressway-deployment-guide_chapter_01.html
I think it’s fairly new for expressway 12.5.x guides, I don’t remember seeing it in 8.11 guides
Jeffrey McHugh | Practice Manager, Collaboration Services
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From: cisco-voip <cisco-voip-bounces@puck.nether.net> On Behalf Of Jonathan Charles
Sent: Friday, February 7, 2020 11:22 PM
To: Ryan Huff <ryanhuff@outlook.com>
Cc: cisco-voip@puck.nether.net
Subject: [EXT] Re: [cisco-voip] Expressway Cluster failover for MRA...
So I changed the SRV records to be equal priority and weight... and everything works fine.
If I put a C & E pair at a site in maintenance mode, we do NOT see automatic reregistration of phone services to the other C/E pair at the other site.
If you log out and back in, it does automatically reregister.
If we put one of the 4 Expressways in maintenance mode, it fails over automatically.
How do we achieve automatic failover for MRA?
Jonathan
On Wed, Jan 29, 2020 at 3:17 PM Jonathan Charles <jonvoip@gmail.com<mailto:jonvoip@gmail.com>> wrote:
I mean an outbound flow... offnet Jabber calls PSTN... I need it to go to primary DC... the only way I can force that is by lowering priority of the collab-edge SRV record.
To force a failover, I put the primary in maintenance mode, then Jabber times out and dies... log out, log back in and it connects to the DR.
If I set the SRVs to the same priority, it seems to connect thru the DR site (out of spite).
Jonathan
On Wed, Jan 29, 2020 at 2:59 PM Ryan Huff <ryanhuff@outlook.com<mailto:ryanhuff@outlook.com>> wrote:
That seems correct. It seems like you’re speaking about an outbound flow and Lelio is speaking about an inbound flow.
The traversal client cluster (the CS) should know about all the peers in the traversal server cluster (the Es).
Sent from my iPhone
On Jan 29, 2020, at 15:21, Jonathan Charles <jonvoip@gmail.com<mailto:jonvoip@gmail.com>> wrote:
?
OK, maybe I am misunderstanding... I have th E's paired together as a cluster and the C's paired together as a cluster... I have the C's initiating a UCM traversal client to both E's... is this not correct?
Jonathan
On Tue, Jan 28, 2020 at 7:59 PM Lelio Fulgenzi <lelio@uoguelph.ca<mailto:lelio@uoguelph.ca>> wrote:
I could be wrong here, but from what was explained to me...
You may be able to control the initial connection from off-prem device to the E of your choosing, but you cannot control which C that E talks to. And vice-versa.
So, you could point people to Ea, but they could easily be sent to Cs. And that traffic back from Cs could easily be sent to Es.
I was told at one time, the only option would be to put hosts in maintenance mode or something like that. But it wasn’t advised.
I’d love to hear other suggestions.
-sent from mobile device-
Lelio Fulgenzi, B.A. | Senior Analyst
Computing and Communications Services | University of Guelph
Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | N1G 2W1
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On Jan 28, 2020, at 8:49 PM, Jonathan Charles <jonvoip@gmail.com<mailto:jonvoip@gmail.com>> wrote:
We have two pairs of Expressway clusters (C/E) at two different locations (primary and DR)...
The cluster is up, however, we want to make sure that we are in Active/Standby.
Currently, we have one of our SRV records for collab-edge set at 5 (the backup is at 10) with the same weight.
The clustering guide says we should set the priority and weight on both SRV records the same, which will cause half of the registrations to go to the DR site. It is far away and has less capability.
How do we:
1 - Make sure the primary site handles all MRA registrations and the DR site is only used when the primary is down.
2 = Make sure failover occurs automatically... currently Jabber users have to log out and back in to connect to the DR site.
Thanks!
Jonathan
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https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X12-5/exwy_b_mra-expressway-deployment-guide/exwy_b_mra-expressway-deployment-guide_chapter_01.html
I think it’s fairly new for expressway 12.5.x guides, I don’t remember seeing it in 8.11 guides
Jeffrey McHugh | Practice Manager, Collaboration Services
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Fidelus Technologies, LLC
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240 West 35th Street, 6th Floor, New York, NY 10001
+1-212-616-7801 office | +1-212-616-7850 fax | www.fidelus.com<http://www.fidelus.com/>
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From: cisco-voip <cisco-voip-bounces@puck.nether.net> On Behalf Of Jonathan Charles
Sent: Friday, February 7, 2020 11:22 PM
To: Ryan Huff <ryanhuff@outlook.com>
Cc: cisco-voip@puck.nether.net
Subject: [EXT] Re: [cisco-voip] Expressway Cluster failover for MRA...
So I changed the SRV records to be equal priority and weight... and everything works fine.
If I put a C & E pair at a site in maintenance mode, we do NOT see automatic reregistration of phone services to the other C/E pair at the other site.
If you log out and back in, it does automatically reregister.
If we put one of the 4 Expressways in maintenance mode, it fails over automatically.
How do we achieve automatic failover for MRA?
Jonathan
On Wed, Jan 29, 2020 at 3:17 PM Jonathan Charles <jonvoip@gmail.com<mailto:jonvoip@gmail.com>> wrote:
I mean an outbound flow... offnet Jabber calls PSTN... I need it to go to primary DC... the only way I can force that is by lowering priority of the collab-edge SRV record.
To force a failover, I put the primary in maintenance mode, then Jabber times out and dies... log out, log back in and it connects to the DR.
If I set the SRVs to the same priority, it seems to connect thru the DR site (out of spite).
Jonathan
On Wed, Jan 29, 2020 at 2:59 PM Ryan Huff <ryanhuff@outlook.com<mailto:ryanhuff@outlook.com>> wrote:
That seems correct. It seems like you’re speaking about an outbound flow and Lelio is speaking about an inbound flow.
The traversal client cluster (the CS) should know about all the peers in the traversal server cluster (the Es).
Sent from my iPhone
On Jan 29, 2020, at 15:21, Jonathan Charles <jonvoip@gmail.com<mailto:jonvoip@gmail.com>> wrote:
?
OK, maybe I am misunderstanding... I have th E's paired together as a cluster and the C's paired together as a cluster... I have the C's initiating a UCM traversal client to both E's... is this not correct?
Jonathan
On Tue, Jan 28, 2020 at 7:59 PM Lelio Fulgenzi <lelio@uoguelph.ca<mailto:lelio@uoguelph.ca>> wrote:
I could be wrong here, but from what was explained to me...
You may be able to control the initial connection from off-prem device to the E of your choosing, but you cannot control which C that E talks to. And vice-versa.
So, you could point people to Ea, but they could easily be sent to Cs. And that traffic back from Cs could easily be sent to Es.
I was told at one time, the only option would be to put hosts in maintenance mode or something like that. But it wasn’t advised.
I’d love to hear other suggestions.
-sent from mobile device-
Lelio Fulgenzi, B.A. | Senior Analyst
Computing and Communications Services | University of Guelph
Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON | N1G 2W1
519-824-4120 Ext. 56354<tel:519-824-4120;56354> | lelio@uoguelph.ca<mailto:lelio@uoguelph.ca>
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On Jan 28, 2020, at 8:49 PM, Jonathan Charles <jonvoip@gmail.com<mailto:jonvoip@gmail.com>> wrote:
We have two pairs of Expressway clusters (C/E) at two different locations (primary and DR)...
The cluster is up, however, we want to make sure that we are in Active/Standby.
Currently, we have one of our SRV records for collab-edge set at 5 (the backup is at 10) with the same weight.
The clustering guide says we should set the priority and weight on both SRV records the same, which will cause half of the registrations to go to the DR site. It is far away and has less capability.
How do we:
1 - Make sure the primary site handles all MRA registrations and the DR site is only used when the primary is down.
2 = Make sure failover occurs automatically... currently Jabber users have to log out and back in to connect to the DR site.
Thanks!
Jonathan
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