ASR1002 - opinions, experiences?

[Michal Dobrzynski]

Hi,

I am looking to upgrade part of our core network to ASR1002 routers. Does anyone have any experience with these products? They are relatively new and there is not much about their reliability on the Internet.

We are planning to use those as our transit routers as well as LNS.

Any thoughts would be very much appreciated.

Thanks,

MIchal

[kamel.sadani_2]

Hello,

I have tested this platform in a large project involving ASR9000 and ASR1000 too.

I can tell you that the ASR1000 is a really multiservices box ( MPLS/L3VPN/L2VPN/QOS/CSC/MCAST).

In addition I use the 1002F as a Route Reflector for Vpnv4, it's very scalable

You can go ahead with ...

[Yasir Ashfaque]

As it provides software redundancy only and very limited Switching Capacity for Core links, you must evaluate your core requirments, either you are ok with software redundancy and specially the ESP requirments, ASR1002 supports maximum of 10G, so in comparison to your 7600 core routers it is very very less.

I would suggest you to evaluate all your network(current and future) requirments, then decide either you want to go with ASR1002, or 1006.

Yasir

[kamel.sadani_2]

I can confirm you that in terms of services IPV4/MPLS/L2/L3/ADVANCED QOS FEATURES  this platform is very robust and scalable.

We use it as MLPS PE( Aggregation/Concentration) or CE, depending on the area of the network.

Our SP  Core is based on ASR9000 using multiple 10 G interfaces.

So it's clear that Michal should first define his objectives in terms of services/resilience/budget/convergence time so on ...

That's clearlly a minimum.

Next? you should not say  "it provides software redundancy only and very limited Switching Capacity for Core links"

This subject of resilience and HA is not reduced to ISSU only. With the IOS XE you can take advantage of the following:

• Warm  Standby, and Warm Reboot, ->  tested ok
  
• Nonstop Forwarding with Stateful Switchover (NSF/SSO), -> tested ok
  
• Multiprotocol Label Switching (MPLS) High Availability, ->  tested ok
  
• Bidirectional  Forwarding Detection (BFD), -> tested ok
• In Service Software Upgrade (ISSU) ->  I have also tested ( DUAL PROCESS on a SINGLE RP) tested ok

Finally,can you tell me why you reference the Cisco 7600 when Michal

does not reference it ?

KS

[Michal Dobrzynski]

Hi Guys,

Thank you very much for all the tips and opinions.

What I am intend of doing is to replace 2 7206-NPEG2 routers with ASR1002.

One will be used as a transit router with MPLS/MP-BGP and acting as router reflector.

Other one is to be used as a MPLS PE router and also acting as LNS for about 4000 broadband connections.

I am also looking to future proof the network with a possible upgrade to 10Gbit core - ASR will be able to accomodate 3 10Gbit ports, which is good.

Software redundancy is a nice feature which I will buy the license for.

Also, as a side note I am looking to implement 3 x Catalyst 4502-E with 6E-L supervisor and 6x10Gbit + 48x1Gbit cards. These L2/L3 switches will act as core switches.

We are not looking for 7600 as options.

Thanks,

Michal

[Leo Laohoo]

Also, as a side note I am looking to implement 3 x Catalyst 4502-E with 6E-L supervisor and 6x10Gbit + 48x1Gbit cards. These L2/L3 switches will act as core switches.

I wouldn't implement 10Gb with the 4500E because there is no bandwidth.

[Yasir Ashfaque]

Hi,

ASR1002 (SIP10) supports total of 10G capacity with 4GE Ports with ESP-10G, but with comparison to 72xx it is a nice replacement.

regards,

Yasir

[kamel.sadani_2]

Hello,

Again  as explained previously, the first approach should be a what if analysis approach ! in which

you should take in account your different constraints in terms of BANDWIDTH/SERVICES/QOS/CONNECTIVITY/COSTS.

From that point you'll know which platform is adapted for your design.

For this discussion we have referenced (ASR1002,72XX/9K/45XX) etc...

Cleary the Cisco portfolio is wide and if you want to purschase the right platform, for your specific network

you have to  follow the path (dimensionning/designing/testing/deploying).

For instance and also FYI:

• The CAT 4500E can be setup with a SUP 7-E system
• 848 Gbps switching capacity (48G/slot)                         // meaning a huge capacity !
• 4SFP+/SFP uplinks
• Flexible Netflow

You can install a 12 ports 10GE Line Card

You can use the IOS XE Next Gen OS which could be intersting since you want to install the ASR1k. You'll get

the same approach in terms of IOS.

In addition, you have to understand if your RR will act as RR only for IPV4 or VPNV4 (no data traffic crossing tje RR) or not.

In that case just take the ASR1002F as a RR it's very scalable and powerfull for this role.

There is an interesting test result concerning the ASR1002F as RR on the cisco WEB site.

To conclude if your ASR1002 is for the core , you should study the ASR1004 which is positionned for CORE WAN EDGE

KS

[nadjailic]

We replaced 7200 LNS to ASR1002 and experienced problem - sessions stays stucked in wiccn state (we have~1000 sessions per tunnel). BRAS is Redback Smart Edge 800 and it seems it is due to some performanse interoperability issue. We are working on it to make this works by tunning window&CA parametars but still without success. If somebody had similar experience please help...

[Dr.X]

hiii.

wt do u mean it stuck with only 1000 sessions ?

do u have license for your ASR for LNS broadband aggregator router ??

or just working with default ?

can u share ?

regards