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F2e - routing entries (TCAM) LIMIT

n.poongsawad
Level 1
Level 1

Hi,

Please clarify me.

1. Can I use F2e only N7K chassis to do e-BGP peering? M series is really costly.

2. F2e has limit with 32K IPv4 routes.

        2.1 What happen if it become full?

        2.2 Would N7K will continue fwd correctly?

        2.3 Could 32001th route be looked up on SUP2e such RIB?

3. What diff between forwarding decision scheme of CAT6500 (720) with N7K? RIB/FIB/TCAM

Thk in advance,

Nipat.p

1 Reply 1

not all sup720 are equal in terms of routing table and TCAM size.

unless you have already a Sup 720 3CXL or sup720 3BXL you should have some margin of improvement.

clearly this can be a sign that you have too many BGP upstream providers on same device for example

see

http://www.cisco.com/en/US/partner/prod/collateral/switches/ps5718/ps9336/product_data_sheet0900aecd806ed759_ps708_Products_Data_Sheet.html

or

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps9336/product_data_sheet0900aecd806ed759_ps708_Products_Data_Sheet.html

and comparison of all sup720 -xx

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/product_data_sheet09186a0080159856.html

Also there are the RSP720 processor family for 7600 to be considered

or you need to move to GSR with PRP2 or ASR 1006 but this is a major change.