[tssi]

Hi Guys ..
actually we have problems while the clients download its own images through the network
here the specs
we have this config
Cisco B( ppal Switch)cat4506-192.168.1.46
we have 2 vlans (1-office and 12- floor)
in the floor we have 3 switches connected to the cisco B
Cisco C - cat6513 ,
Cisco D - cat4506
Cisco E - cat 4506
the clients need to download software from our servers.
The cisco C works faster
but the Cisco D and E works slow .
we compare the ports configuration and its the same .
what we can improbment to make this couple swtches works faster as cisco C..

thanks in advanced

[auglan]

Of course the 6513 is faster, it has a better supervisor engine and a larger backplane. You can look at the spec sheet on that switch and compare the differences. Are your clients connecting directly to these 3 switches or are their access layer switches behind them? What type of images are they downloading? How large are they? How many are you trying to do at a time? Are you using multicast?

[tssi]

Hi thanks for take your time for see our case

Are your clients connecting directly to these 3 switches - Yes

or are their access layer ?? ???? I no understand or what it means


switches behind them? NO the clients connect directly to the Cisco switch


What type of images are they downloading? what you mean with Kind ??
*.tar files


How large are they? among 7 through 20 gb


How many are you trying to do at a time?
ok we have 7 download server and per server can download 40 at time ...
so we have the 6513 and the other 2 switches sharing in the floor but we want to improvement some configuration or connections for make the other 2 4506 switches more faster .. because

5 serves are connected to the 6513 and its download faster the clients that are connected to the cisco C and D but the cisco C download more slow .. ..

the rest 2 servers are connected to the cisco D and its download slowly ..

I know that it sound so messy sorry if I don't make me explain correctly ..


Are you using multicast?I heard this term in the school but i don't remember let me Google but i don't know how or where can we use this option

[auglan]

You need to look at your link utilization and see what that looks like. Take a look at your cpu and memory on the 4500's to see if its getting high. You could be just over taxing those platforms.

[tssi]

Thanks Agulan for the comments today we have a free day on plant and we just coming for maintenance so
we will check the next week when all floor are full ..
Best Regards

[tssi]

attached will find the cpu utilization with a higer record on
Cat4k Mgmt LoPr around 80 % .. its means something wrong ?
thanks

[auglan]

CPU utilization for five seconds: 96%/0%; one minute: 89%; five minutes: 53%

Those values are very high. Are those numbers under normal load? or during a transfer? Really it doesn't matter as your are taxing that switch to its limits. Are you doing alot of logging via ACL's? If so all logged packets under an ACL are punted down to the cpu for processing. This can cause high utilization.

show platform health

show platform cpu packet statistics

Also here is a good link from cisco


http://www.cisco.com/en/US/products/...804cef15.shtml