[cisco-voip] E911 (CER or 911ENABLE), SNMP and port locations

[Lelio Fulgenzi]

OK - Thanks. At least we have options. I don't think we can redesign our layer 1 infrastructure that easily, so it might mean a bit of work in the beginning, and some work to maintain. 



--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Bad grammar makes me [sic]" - Tshirt 


----- Original Message ----- 
From: "Ed Leatherman" <ealeatherman at gmail.com> 
To: "Lelio Fulgenzi" <lelio at uoguelph.ca> 
Cc: "cisco-voip voyp list" <cisco-voip at puck.nether.net> 
Sent: Thursday, September 24, 2009 2:23:53 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] E911 (CER or 911ENABLE), SNMP and port locations 

Sean made a good point, I overlooked that option. You can configure locations based on IP address and also based on directory number as well. 


The way our network is setup, location by IP wouldn't work so we do it by switch port. 


I do location by extension for dorms, since there is only 1 appearance of each extension and they are all VG224 ports rather than switch ports. 


On Thu, Sep 24, 2009 at 2:14 PM, Lelio Fulgenzi < lelio at uoguelph.ca > wrote: 




So Ed, based on a few more recent comments - have you then configured your CER based on SNMP/port discovery rather than based on subnet? 


--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Bad grammar makes me [sic]" - Tshirt 


----- Original Message ----- 
From: "Ed Leatherman" < ealeatherman at gmail.com > 
To: "Lelio Fulgenzi" < lelio at uoguelph.ca > 
Cc: "cisco-voip voyp list" < cisco-voip at puck.nether.net > 



Sent: Thursday, September 24, 2009 2:13:39 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] E911 (CER or 911ENABLE), SNMP and port locations 

You got it 


On Thu, Sep 24, 2009 at 2:06 PM, Lelio Fulgenzi < lelio at uoguelph.ca > wrote: 




Ah - so all location information is managed within CER, not within the switches themselves? 

If we install a new switch, we update CER with that switch IP address, and the location information for all the ports in that switchstack? 

Interesting. I thought somehow you programmed additional information into the switch and CER read that via SNMP. I guess all it reads via SNMP is the phone that is attached to the port. 


--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Bad grammar makes me [sic]" - Tshirt 





----- Original Message ----- 
From: "Ed Leatherman" < ealeatherman at gmail.com > 
To: "Lelio Fulgenzi" < lelio at uoguelph.ca > 
Cc: "cisco-voip voyp list" < cisco-voip at puck.nether.net > 
Sent: Thursday, September 24, 2009 2:01:10 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] E911 (CER or 911ENABLE), SNMP and port locations 

using CER here. Each switchport has its own location, so its not a problem for example to have part of the switch service one floor/area, and the other part service a difference location. It does mean that your network support staff must be aware that if they change where a port is patched to, a change may also need to be made to the CER configuration for that port. 


Would be fantastic if CER were smart enough to read in the switchport description and glean the ERL from that. 


On Thu, Sep 24, 2009 at 1:53 PM, Lelio Fulgenzi < lelio at uoguelph.ca > wrote: 




Just wondering...for those of you who have enabled E911, either using Cisco ER or 911Enable, can a switch and/or switch-stack have different "locations" associated with it? In our current layer 1 model, we install a switch stack in a particular space which services both horizontal and vertical space. For example, a switch stack in one corner of the building could service half the desks on each of four floors, and a switch stack in another corner of the building could service the other half on each of four floors. 

How will that complicate things going forward if we want to do E911? 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Bad grammar makes me [sic]" - Tshirt 


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-- 
Ed Leatherman 




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Ed Leatherman 




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Ed Leatherman 

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