| Title: | DEChub/HUBwatch/PROBEwatch CONFERENCE |
| Notice: | Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7 |
| Moderator: | NETCAD::COLELLA DT |
| Created: | Wed Nov 13 1991 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 4455 |
| Total number of notes: | 16761 |
Hi, I have seen a couple of cases where high bursty traffic generates alot of CRC error. On 70000 packets up to 5 CRC packets could be recived. On one site the customer swapped every thing except for the backplane. The test the customer did was to copy a file between two AXP systems. I have reproduced the problem inhouse with a DEChub90 with one DB90, DA90 and DR90T. On the DR90T I connected a DECpacketprobe90 and a Sniffer. They both reported CRC errors when the hub was reciving a high traffic load from a DEC3300 doing a ping -l 70000 -s 400 to the DECagent90. The load on the hub reported by the sniffer was an average on 85% with peaks up to 98%. It seems that the DEChub90 don't handle high traffic loads very well ! Any comments ? /Stefan
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1127.1 | any comments ? | ANTIK::WESTERBERG | Stefan Westerberg DC SN&O Stockholm | Wed Jun 22 1994 13:57 | 6 |
Any comments on .0 ? I have recived this question from a customer who currently only have two DEChub90 but is think to get some DEChub900. /Stefan | |||||
| 1127.2 | NACAD::SLAWRENCE | Thu Jun 23 1994 12:17 | 1 | ||
You might try this in the Ethernet conference... | |||||