[cisco-voip] IM&P - Jabber for Everyone, MRA and private/public IP addressing

[Matthew Loraditch]

Inline
Feel free to ask me more. I haven’t done it at your scale, but I have the entire expressway feature set deployed.

Matthew G. Loraditch – CCNP-Voice, CCNA-R&S, CCDA
Network Engineer
Direct Voice: 443.541.1518

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From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Lelio Fulgenzi
Sent: Monday, July 27, 2015 9:55 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] IM&P - Jabber for Everyone, MRA and private/public IP addressing


Just curious what people's thoughts are about Jabber for Everyone, MRA (via expressway) and private/public IP addressing of the presence servers. I've tried to find some documents that explain things, even in summary format, but with no luck.

My (random) concerns:



- does expressway support third party xmpp clients? No

- does expressway support jabber for everyone? (IM&P only) Yes

- does expressway scale to the possibly 25,000 IM users I might have? No, See here: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab10/collab10/sizing.html#pgfId-1284691

I would doubt you’d ever have all 25k users off site though… expressway is only for remote users

- expressway does not support all the on premise features, like file transfer - http://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/release_note/Cisco-Expressway-Release-Note-X8-5-1.pdf

Scroll to page 7 bottom

- do i use private or public IP addresses? Your expressway-e(s) is/are the only server(s) that gets exposed to the internet and even then you can NAT it and use 2 interfaces, one internal and one DMZ
- no real details on how to deploy presence server on public IP but still use expressway for UC – You don’t put a Presence server on a public ip. All External (MRA/XMPP/B2B) is via Expressway if you have it.


Any ideas or pointers would help... Thanks!

Lelio



---
Lelio Fulgenzi, B.A.
Senior Analyst, Network Infrastructure
Computing and Communications Services (CCS)
University of Guelph

519‐824‐4120 Ext 56354
lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>
www.uoguelph.ca/ccs<http://www.uoguelph.ca/ccs>
Room 037, Animal Science and Nutrition Building
Guelph, Ontario, N1G 2W1

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