i'm a newbe to the Cisco forum site. Anyway here is my case. I have a 3750 client stack that is connected to a 3Com backbone (eek!) which also is connected to my 2950 server switch. So the client traffic goes from the 3750s to the 3Com to the 2950. OK, now for my problem:
I have about 300 input errors a day on the Cisco switches and a sporadically slow download times for my users.
Here is a small excert of my error.
2950-LL-1#show interface GigabitEthernet0/1
GigabitEthernet0/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 0012.013c.e119 (bia 0012.013c.e119)
MTU 1500 bytes, BW 1000000 Kbit, DLY 1000 usec,
reliability 255/255, txload 3/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
input flow-control is off, output flow-control is on
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:05, output hang never
Last clearing of "show interface" counters 02:10:50
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
I'm going to assume the fiber for both Cisco switches go to the 3com? How is the 3com gig ports configured? Auto or static to Full 1000Mb? the 3750 is set to auto by the config posted and The 2950 is configured to 1000Mb Full duplex.
CRC errors and input errors on switches points to a config mismatch between the 3com and both cisco's.
In my case, I had these errors when I configure my Cisco 3x and 2x switches to nortel switches. In some cases the Gig ports on the Cisco's needed to be set to nonegotiate. or I static the speed to 1000 and keep the duplex to auto.
Most times.. Auto on both should fix this. but due to hardware differences, you may need to do some testing.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...