Komy, The SRM card is primarily used when N:1 redundancy is required. In cases of 1:1 redundancy (using two similar cards) the SRM is not needed.
Keep in mind also that the SRM cards provide N:1 redundancy support only to the modules connected in the same shelf (top or bottom) as the SRM is installed. For instance, if you install the SRM cards in slots 15 and 16, then you can only provide N:1 redundancy to slots 1-6 and 11-14, since slots 7 & 8 are reserved for the PXM cards, and slots 9 & 10 for the RPM cards. I'd advise you to use the SRM cards in case you have more than two cards of the same kind, all of them installed in the same (top or bottom) shelf. Another important fact to keep in mind is this: The top shelf slots (1-16) are connected to a faster BUS than the bottom slots). Therefore, install all your modules that use T1, E1 and other slower speed I/O ports in the bottom shelf slots. Install all modules with I/O ports T3 and higher I/O port speeds in the top shelf slots. Hth, Angel Leiva CCNP-WAN, CCNA, MCSE Sr. Network Consultant Lucent Technologies, ESS -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mohamed el-Komy Sent: Thursday, March 21, 2002 5:14 AM To: [EMAIL PROTECTED] Subject: MGX 8250 [7:39022] hi all, i've a question concerning redundancy in MGX 8250.I know that the SRM card is essential for redundancy but i've the following case: I've 1:1 redundancy in some cards....the main and redundant cared will be connected together via a Y cable...does that mean i also need the SRM card to support redundancy or the y cable just enough to make the redundant card take over when the primarcy card fails?? BR, Komy Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=39323&t=39022 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
