7200emu.hacki.at

kabin31 · Joined: 23 Jan 2007 Posts: 17

As far as I know Integrated virtual switch supports just VLAN and dot1q functions.

Please someone especially developers of this great software tell me if we can expect C3550 or 3560 emulator soon? If it is really hard to implement full those functions, how about adding L3 function to them?

Thanks

myown · Joined: 13 Sep 2006 Posts: 239 Location: Pakistan

as i know, many of L3 functions are already there. Most of BCMSN stuff is possible.

curlyjoe55 · Joined: 27 Jan 2007 Posts: 5

This would be really fantastic to have.

The 16-port NM in the 3640 is better than nothing. At least it has a dynamic IOS config (rather that static ".net" config). But a L3 3550 would be even better, especially to provide a higher port count for large virtual labs.

Can anyone provide any information on what the capabilities/limitations are of the "built-in" Ethernet switch? I'm referring to the [[ETHSW]] construct. How many ports can this switch support?

Anyways, this built-in seems to be L2 only and is restricted to static config, making changes during lab a bit awkward. It would be nice to have a dynamically changeable configuration like a real switch for these purposes.

Cheers!

shiwan · Joined: 29 Jan 2007 Posts: 2

myown · Joined: 13 Sep 2006 Posts: 239 Location: Pakistan

hi,

"reportdly" chris is working on 3550/3560. By the way, you can use NM-16ESW in dynagen. But there are few limititations at NM-16ESW.

1- portsecurity
2- RSTP
3- MSTP

these are three which are mostly required in BCMSN and are missing. A complete list of limitations is available on Cisco website.

http://www.cisco.com/en/US/products/hw/modules/ps2643/products_qanda_item09186a00802c9e7a.shtml

and second link

http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_feature_guide09186a00801d2d60.html

hope it was helpful.

kabin31 · Joined: 23 Jan 2007 Posts: 17

myown · Joined: 13 Sep 2006 Posts: 239 Location: Pakistan

"reportedly" always means rumors.... why you don't watch CNN and Mr. Bush speeches. Very Happy

Hope it was helpful Wink

chris · Site Admin Joined: 17 Jul 2006 Posts: 468

Well, I played a bit with various models, with no success so far. A big problem is that all switch models are doing "POST" tests to check various things about the hardware. Besides, the chips in 3550/3560/3750 are Cisco custom ASICs, so guessing how they work without a booting virtual machine is probably impossible. Without Cisco help, I don't think it can be done.

I believe I could enhance the integrated L2 switch to do also L3 routing, spanning-tree and other things, but since it is not IOS I don't think people would like it.

hacki · Posted: Tue Jan 30, 2007 9:28 am Post subject:

chris · Site Admin Joined: 17 Jul 2006 Posts: 468

Hi Hacki,

I don't think they would accept, since 3550/3560/3750 aren't EOS models. Moreover, I don't know if this kind of decision can be taken by a Product Manager (IMHO, this would be a complex decision process).

myown · Joined: 13 Sep 2006 Posts: 239 Location: Pakistan

it is very very sad news. i am not a programmer, but i can suggest that to make post, some kind of fake "replies to checking routines" can be made into system. Although it may make the system design difficult and possibly slow.

just my idea nothing else...

chris · Site Admin Joined: 17 Jul 2006 Posts: 468

Well it wouldn't be so easy: for example, one of the POST test is to send packets in loopback mode. However, I don't have any info about buffers, interrupts or anything. And there are also other tests about TCAM and other ASICs.

myown · Joined: 13 Sep 2006 Posts: 239 Location: Pakistan

can we raise funds to have few programmers which can help to investigate the required routines or coding issues.

I am not saying Chris is not capable, but only to off load some burden.

These are only mine thoughts and nothing else......

wayn · Joined: 09 Dec 2006 Posts: 40 Location: USA

Hi Chris,

fu123 · Joined: 30 Jan 2007 Posts: 3

Yeah, have to thank also very much.

I tried the IE topology and it's working on a notebook with 2 GB Ram and 1,6 Mhz cpu. But i could not load all routers. The BB routers made all to slow.

I have set the idlepc values. With 5-6 router i got about 70-80% cpu usage. But when i start the "switches" it really gets slow. Don't know if i can enhance this more.
Not using ghost ram for example.

I could do a lot with the 16 Port switching module. A lot of functions are available. Ok, there are also a lot missing, but one can practice a lot with the module on switching and spanning tree functions.

Sometimes the vtp functions does not work, because the router could not write to the vtp database and gives an error message. Then i have to delete the files on the disk to be able to configure vtp again.

Frank