Setting up NTP server

[sagar.joshi]

I have two 6506 Switches back to back connected with two L3 Modules each.

I want to configure NTP Server on it.

On L2 I have already set NTP server with timezone of IST.

I want to configure the same on L3 Modules.

Will anyone suggest me what are commands to set time zone & NTP Server on L3 Modules.

[konigl]

! This command puts an MSFC in the PST timezone:

clock timezone PST -8

! This command adjusts the clock for Daylight Saving Time:

clock summer-time PDT recurring

! This command tells the MSFC to use the hardware calendar as an authoritative time source if connectivity to the NTP server is lost:

clock calendar-valid

! This comand tells the MSFC to update the hardware calendar with the NTP time:

ntp update-calendar

! This command tells the MSFC to get its time from the NTP server at IP address 10.100.100.1:

ntp server 10.100.100.1

If you want, you can specify multiple NTP servers for redundancy.

Why not let the L3 modules (MSFC) be your NTP server, and point your L2 to them for NTP time?

Here's a useful link to more info about NTP on 6000 series switches with redundant Supervisor modules:

Example NTP Configuration for High Availability Catalyst 6000 Switch

http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a008010e97e.shtml

Hope this helps.