CUCM 8.0.3 ISSUE WITH DHCP SERVER

[chrysostomos1980]

Hi

I have two call manager  8.0.3 su1

The dhcp server is a layer 3 switch (4506)

ip dhcp pool TESTING
   network 10.2.2.0 255.255.255.0
   default-router 10.2.2.1
   option 150 ip 10.3.1.1 10.3.1.2

CUCM1:  10.3.1.1

CUCM2: 10.3.1.2

Main Group: first CUCM2 and Secondary CUCM1

The strange here is the CUCM2(10.3.1.2) can not register with the phones.The message is REJECTED

You can see above that on option 150 the first tftp is the CUCM1 10.3.1.1

Then if i change on option 150 and put first the CUCM2 10.3.1.2 then the phones can register to this node BUT they can not register to the first node

Its look like that on option 150 the phones see only the first ip and they dont recognise teh second ip

OR the switch send only the first ip (bug or)

4506-L3#show  version
Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500-ENTSERVICESK9-M), Version 12.2(50)SG2, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Mon 27-Apr-09 15:09 by prod_rel_team
Image text-base: 0x10000000, data-base: 0x11F9E9CC

ROM: 12.2(20r)EW1
Dagobah Revision 226, Swamp Revision 34

4506-L3 uptime is 40 weeks, 3 days, 20 hours, 44 minutes
System returned to ROM by power-on
System restarted at 15:27:42 EDT Sat Jul 31 2010
System image file is "bootflash:cat4500-entservicesk9-mz.122-50.SG2.bin"

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html you require further assistance please contact us by sending email to
export@cisco.com. WS-C4506 (MPC8245) processor (revision 4) with 524288K bytes of memory.
Processor board ID FOX06470TAB
MPC8245 CPU at 400Mhz, Supervisor V
Last reset from PowerUp
5 Virtual Ethernet interfaces
48 FastEthernet interfaces
104 Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.

If

cisco

Configuration register is 0x2102

4506-L3#

Coul you pls advice?

[phooghen]

Here is my understanding.

When you configure :

option 150 ip 10.3.1.1 10.3.1.2

10.3.1.1 is the primary TFTP server while 10.3.1.2 is the secondary/backup TFTP server.

Secondary means that if the primary TFTP is not available, it will try the secondary.

It doesn't mean that the router will load balance the request evenly to both servers.

Pierre.

[chrysostomos1980]

Dear Pierre

Let me to give you a clearing picture

I have a CM group configure: first 10.3.1.2 and second 10.3.1.1 (under device pool)

option 150 ip 10.3.1.1 10.3.1.2 (first tftp 10.3.1.1 and second 10.3.1.2)

With the above scenario the phones register ONLY to the 10.3.1.1 and not to the 10.3.1.2 that is supposed to register there because under the main group the first node is the 10.3.1.2

THEN NOW IF I CHANGE THE OPTION 150 AND PUT FIRST THE 10.3.1.2 THEN THE PHONES REGISTER SUCCESFULLY TO THE 10.3.1.2

IN TWO WORDS regardless WHAT I HAVE IN THE CM GROUP the phone register only with the first ip on the option 150

Its not very strange?

[phooghen]

Now I understand your issue.

This is indeed strange.

Could you please make sure the servers in the cluster are synchronized by issuing :

utils dbreplication status

and make sure status is 2—Good Replication.

You can also probably restart the TFTP service on both servers.

Pierre.

[chrysostomos1980]

Pierre

Thank you for your time

Unfortunately nothing change

Maybe its a ios bug on 4506 switch(dhcp server).Its look that it recognize only the first ip in  option 150

Steps:

I have restarted both tftp services on cucms

Output from the cli

admin:utils dbreplication runtimestate

DB and Replication Services: ALL RUNNING

Cluster Replication State: Replication status command started at: 2011-05-11-23-25

     Replication status command COMPLETED 519 tables checked out of 519

     No Errors or Mismatches found.

     Use 'file view activelog cm/trace/dbl/sdi/ReplicationStatus.2011_05_11_23_25_39.out' to see the details

DB Version: ccm8_0_3_20000_2

Number of replicated tables: 519

Cluster Detailed View from PUB (2 Servers):

                                PING            REPLICATION     REPL.   DBver&  REPL.   REPLICATION SETUP

SERVER-NAME     IP ADDRESS      (msec)  RPC?    STATUS          QUEUE   TABLES  LOOP?   (RTMT) & details

-----------     ------------    ------  ----    -----------     -----   ------- -----   -----------------

UNICUCM1        10.3.1.1        0.021   Yes     Connected       0       match   Yes     (2) PUB Setup Completed

UNICUCM2        10.3.1.2        0.144   Yes     Connected       0       match   Yes     (2) Setup Completed

It looks ok the dbreplication

Any other idea?

[p.mcgowan]

I am experiencing a similar problem.

Did you ever get this issue resolved?

[chrysostomos1980]

Hi

The dhcp server is temporary now one 4506 switch(the problem appeared on this machine)

i will use a different machine for  DHCP server and i will check if the problem solved

i will return back with a feddback

Now i dont have any update to give you

Regards

chrysostomos