[SunRay-Users] Cisco Catalyst 6500

Detlev Habicht habicht at ims.uni-hannover.de
Thu Oct 29 12:17:16 EET 2009


Hi again,

yes we have packet loss ...

The SunRay was first located at switch S1 with no packet loss.

Now it is at S2 (the SunRays have their own VLAN) with packet loss:

# TERMINALID      TIMESTAMP TOTAL PACKET   TOTAL LOSS   BYTES SENT  
PERCENT LOSS      LATENCY
0....
0003ba4eaf69 20091029102259      6639621      1632108    
1107619330        2.169
0003ba4eaf69 20091029102314      6641693      1632257    
1109706756        7.191
0003ba4eaf69 20091029102329      6643314      1632297    
1111548122        2.468
0003ba4eaf69 20091029102514      6645926      1632307    
1114463962        0.574



+---+
|S1 +-- SR01
|   |
+-+-+
   |    EtherChannel and trunk with two 1Gig
+-+-+
|S0 |
|   |
+-+-+
   |    EtherChannel and trunk with two 1Gig
+-+-+
|S2 +-- SR01 new location
|   |
+---+



The hints with 100F and hires_tick are checked and okay ...

So, what can i do with the switch (except set port host, what i have  
already done ...)??

Detlev

P.S.: One new question: When i changed the MTU to 1366, must i chance  
the MTU for the VLAN, too ? (This
       has nothing to do with problem above.)


Am 28.10.2009 um 16:08 schrieb Craig Bender:

> Does utcapture show packet loss?  Is the Sun Ray Server connected  
> via gigE?  Are the DTU's coming up @ 100F?
>
> Have you tried adding set hires_tick = 1 to /etc/system and rebooting?
>
> Detlev Habicht wrote:
>> Hi all,
>> we are using Cisco Catalyst 6500 switches. And of course our SunRays
>> are also connected to these switches.
>> We have some strange graphic performance problems with our SunRays  
>> (they are slow).
>> And may be it has to do with the switches. (Some SunRays in our  
>> building where
>> moved to a new location and connected to the switch there and now  
>> they are slower.
>> We have several 6500 here in one network.)
>> Are here any hints available how to manage the 6500 for using  
>> SunRays???
>> I do only "set port host" to all the SunRay ports.
>> Thank you for any help.
>> Detlev
>> -- 
>>  Detlev  | Institut fuer Mikroelektronische Systeme
>>  Habicht | D-30167 Hannover +49 511 76219662 habicht at ims.unihannover.de
>>  --------+-------- Handy    +49 172 5415752   
>> ---------------------------
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