NCS540 Specification

[kumarankaliyaperumal]

I am preparing router specification for upcoming projects and unable to find following parameters related to NCS540 routers in the cisco datasheets.

1. Max nos. of Active Route Table (FIB) IPv4 prefixes and IPv6 prefixes.
2. Max nos. of routing table (RIB) for IPv4 and IPv6.
3. Max nos. of IS-IS/OSPF neighbors.
4. Max nos. of IPv4 ACLs and IPv6 ACLs.
5. Max nos. of BGP neighbors.

can someone help me to get the above parameters. 

[Flavio Miranda]

Hi,

 Not the kind of information you are going to find int the Datasheet, some of them you probably will not find at all like how many BGP neighbord?

  Example, If the routing table is up to 4M IPv4 routes and you add a BGP neighbord which has 4M IPv4 routes and you accept all those routes, then, you can have only one neighbord or your crash the router.

 .Some of this information you get from the resseler.

 But, some informatio you can get from ciscos docs, not necessarily datasheet.

Used for unicast route scale up to 2M or 4M IPv4 Routes

I am attaching a pdf with most of this information.

[reymartin]

this varies quite a bit depends on the NCS 540 variant, as an example 100 OSPF peers for Tortin/Big Bend and 300 for Arches variant.

[smilstea · Accepted solution]

These are not easy to answer because of how TCAM is split between LEM and LPM and with anchor prefixes as well as other considerations such as these are unidimensional scale numbers. We don't make a difference between rib and fib, only bgp paths (think multipath) and rib on tortin.

In order of column is as below.

column 1 (N540-24Z8Q2C-SYS, N540(X)-ACC-SYS (NCS-540 Tortin))

column 2 (N540X-12Z16G-SYS-D/A, N540-28Z4C-SYS-D/A, N540-12Z20G-SYS-D/A, N540-FH-CSR-SYS)

column 3 (N540X-6Z18G-SYS-D/A, N540X-4Z14G2Q-D/A, N540X-8Z16G-SYS-D/A)

column 4 (N540-24Q8L2DD-SY)

Max nos. of Active Route Table (FIB) IPv4 prefixes and IPv6 prefixes.

Max nos. of routing table (RIB) for IPv4 and IPv6.

IPv4 BGP/RIB only	18M/12M	8M	8M	10M
IPv6 BGP/RIB only	17M/12M	8M	8M	10M

Max nos. of IS-IS/OSPF neighbors.

ISIS peers

50

50

50

300

OSPF peers

100

100

50

300

Max nos. of IPv4 ACLs and IPv6 ACLs.

IPv4 / IPv6 Ingress unique ACLs	127	127	127	127
IPv4 / IPv6 Egress unique ACLs	255	255	255	255

IPv4 Ingress ACEs	4k	2k	2k	4k
IPv6 Ingress ACEs	2k	2k	2k	2k

IPv4 Egress ACEs	4k	2k	2k	4k
IPv6 Egress ACEs	2k	2k	2k	2k

Max nos. of BGP neighbors.

BGP neighbors

110

110

110

500

Sam

[-Mark-]

tnx

[chetan-ahirao]

This is not true , plesas find logs , from NCS540 , 

NCS540L28Z

, I had TAC case but team cisco never provided official number , as per cisco this will not support full routing table ( appro 1 Million, & had capacity for 128K so buy & plan accordingly 

sh controllers npu resources lpm location all

Mon Dec  9 12:11:15.942 IST

HW Resource Information For Location: 0/RP0/CPU0

HW Resource Information

    Name                            : lpm

    Asic Type                       : QumranAX

NPU-0

OOR Summary

        Estimated Max Entries       : 421868

        Red Threshold               : 95 %

        Yellow Threshold            : 80 %

        OOR State                   : Green

Current Usage

        Total In-Use                : 1331     (0 %)

        iproute                     : 1323     (0 %)

        ip6route                    : 7        (0 %)

        ipmcroute                   : 1        (0 %)

        ip6mcroute                  : 0        (0 %)

        ip6mc_comp_grp              : 0        (0 %)

show controllers npu resources lem location all

Mon Dec  9 12:10:54.653 IST

HW Resource Information For Location: 0/RP0/CPU0

HW Resource Information

    Name                            : lem

    Asic Type                       : QumranAX

NPU-0

OOR Summary

        Estimated Max Entries       : 262144

        Red Threshold               : 95 %

        Yellow Threshold            : 80 %

        OOR State                   : Green

Current Usage

        Total In-Use                : 439      (0 %)

        iproute                     : 439      (0 %)

        ip6route                    : 0        (0 %)

        mplslabel                   : 1        (0 %)

        l2brmac                     : 0        (0 %)

show controllers npu resources fec location all

Mon Dec  9 12:13:18.388 IST

HW Resource Information For Location: 0/RP0/CPU0

HW Resource Information

    Name                            : fec

    Asic Type                       : QumranAX

NPU-0

OOR Summary

        Estimated Max Entries       : 61440

        Red Threshold               : 95 %

        Yellow Threshold            : 80 %

        OOR State                   : Green

        Bank Info                   : FEC

========================================================================================================================================================

[smilstea]

The table I posted is accurate. It is for specific ncs540 models. The model you posted is not included in that list.

What is your use case, topology, etc?
There may be other ways to work around this problem, which i still don't know from your post what limit you were hitting.

Sam

[chetan-ahirao]

Hi sam,
as per the logs , I can assume that this ncs540L28z can take only 300k LPM & 200k LEM till 80%
I am not sure about Mpls label .
we intend to use this box to act as extension to existing NCS 5504( J2)...but looking to capacity that is not feasible..

also, we cannot use this box for partial internet routing .

I am really wondering what will be use case for this box.?

most likely it can act as PE ( provider edge) with default routing from Internet service provider.

[smilstea]

Can you email me the tac case number and some details about your use case and features? It sounds like PE? Number of routes in default table and VRFs, l3 or l2vpn etc?
Email is my userid at cisco.com

Thanks,
Sam