[c-nsp] ASR1002 + ASR 1004

[Mark Tinka]

On Monday, January 30, 2012 10:23:04 AM CiscoNSP_list 
CiscoNSP_list wrote:

> We have ESP,...

Yep, this provides the centralized data plane forwarding 
function.

> SPA Processor(SIP)...

Yep, this provides the carriage for the SPA's, as well some 
of the packet processing and management functionality, e.g., 
QoS, timing, SPA firmware upgrades, e.t.c.

> and route processor...

Yep, for the control and management plane functions.

> (+SPA
> slots)

Of course, for expansion.

> The 1002 has an integrated Route processor(RP1), 
> integrated SIP(SPA processor), and can have either the
> 5Gb or 10Gb ESP (Plus has 4 built in GigE ports) and has
> 3 SPA slots for "wan" modules - So this device requires
> either the 5GB or 10Gb ESP to perform at either 5G or
> 10Gb, and can have whatever SPA cards inserted into the
> 3 SPA slots?

That's correct.

The ASR1002 comes in two formats:

	o ASR1002-F, which has a fixed 2.5Gbps ESP, i.e.,
	  you can upgrade this one.

	o ASR1002, which can support, as you mention, the
	  5Gbps and 10Gbps ESP's, but nothing faster.


Everything else about them is the same, including the fact 
that they can't support the RP2 (fixed RP1 installed).

> The 1004 has nothing "integrated", so would require an
> route processor(RP1 or RP2),  SIP10,   ESP (10Gb or
> 20Gb), and has 8 SPA slots for "wan" modules?

Yes, but it also supports the SIP40, as do the ASR1006 and 
ASR1013.

The ASR1004, ASR1006 and ASR1013 don't come with "anything" 
in them. Just a shell and power supplies. But unlike the 
ASR1006 and ASR1013, the ASR1004 ships with support for only 
one RP and one ESP.

> The 1004 - Does the SIP10 provide additional "slots" for
> SPA modules?: (Is the SIP10 "required"?)

A SIP10 or SIP40 is required. Without a SIP, you can't 
install any SPA's.

All ASR1000 routers have SIP's. But the ASR1001, ASR1002-F 
and ASR1002 are not field upgradable, as they are integrated 
into the chassis. So if you want to enjoy the SIP40, the 
smallest box you want is the ASR1004.

> The new processor provides physical termination for up to
> four half-height or two full-height or 2 half-height and
> 1 full-height Cisco Shared Port Adapters (SPA) with a
> wide range of connectivity options, including Ethernet,
> Packet over SONET/SDH (PoS), and serial interfaces. It
> also offers ingress classification support for high/low
> priority traffic.

Exactly, without a SIP, you can't have SPA's.

> To have the 1004 perform at 10G (Like the 1002 with
> ESP10), would you need RP1, SIP10, ESP10...

Yes.

> and
> SPA-5X1GE-V2 (To give 5 GigE ports)?

Well, 10Gbps might mean different things to different 
people, but as you can tell from the SPA compliment, you can 
get even get 10x 1Gbps SPA's, or even 1x 10Gbps SPA's.

Do note, however, that there some features that require the 
RP2, e.g., Stateful NAT Failover. Also, Cisco will be 
encouraging the RP2 for new sales, as convergence times 
across various HA protocols are marginally better, 
particularly when the RP2 is combined with newer ESP's.

Hope this helps.

Mark.
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