Is available 6509, in it 2 servers linux are connected, on a picture it is shown. I come on them on ssh, session brakes terribly, deduces pieces somehow all. I switch them in 3750, ssh flies.
For reason finding-out has altered a network - has created vlan, has placed in it 2 ports, has created the interface. 65 for servers is a sluice. As a result from a server on a server ssh works strongly slowly. ssh has moved on 55 port, there was the same. The telnet as slowly works.
Thus on ftp from them it is given on 700-900 Mbit/s. Ping between servers go remarkably.
Options of ports:
switchport access vlan 5
switchport mode access
ip arp inspection trust
no ip address
no cdp enable
spanning-tree bpdufilter enable
spanning-tree bpduguard enable
spanning-tree guard root
ip dhcp snooping trust
ip address 192.168.1.230 255.255.255.248
#sh int gi1/11
GigabitEthernet1/11 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 0015.6336.ec1a (bia 0015.6336.ec1a)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 10/255, rxload 234/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
input flow-control is off, output flow-control is on
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/105/0 (size/max/drops/flushes); Total output drops: 52
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 917844000 bits/sec, 80485 packets/sec
5 minute output rate 40813000 bits/sec, 43061 packets/sec
5271517095 packets input, 7596041637146 bytes, 0 no buffer
Received 262 broadcasts (0 multicasts)
3 runts, 0 giants, 0 throttles
18 input errors, 0 CRC, 0 frame, 87 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
2781972193 packets output, 259447685871 bytes, 0 underruns
26 output errors, 0 collisions, 5 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 183302 PAUSE output
0 output buffer failures, 0 output buffers swapped out
Has switched on in another as the adjusted port a server on FreeBSD, loading on the interface
5 minute input rate 72000 bits/sec, 5 packets/sec
5 minute output rate 9000 bits/sec, 10 packets/sec
But also in this case as slowly ssh moves. Loops are not present.
ps it is exact at the same loading, and even it is more, in 3750 it did not influence in any way session ssh.
Help to find the reason slow ssh.