I have a 3750 configured to do inter-vlan routing. There are 4 vlans.
when do a sftp file transfer from hostA on vlan3 to a hostB on vlan2 I only get about 1000kB/sec to 2000kB/sec.
the hosts are connected on downstream 2950 switches on the appropriate vlans.
I am not trunking the vlans, I am using separate ports to connect each vlan back to the 3750
I have some access lists on the vlan interfaces but I see no improvement in transfer rates even when I remove them.
melayer3# sho access-lists hardware counters
L2 ACL INPUT Statistics
Drop: All frame count: 3
Drop: All bytes count: 192
Bridge Only: All frame count: 25498515
Bridge Only: All bytes count: 1670417855
Forwarding To CPU: All frame count: 548870
Forwarding To CPU: All bytes count: 212525804
L3 ACL INPUT Statistics
Drop: All frame count: 5694
Drop: All bytes count: 451707
Bridge Only: All frame count: 7369443
Bridge Only: All bytes count: 526702768
Forwarding To CPU: All frame count: 0
Forwarding To CPU: All bytes count: 0
Forwarded: All frame count: 5197812473
Forwarded: All bytes count: 17902304001
Drop And Log: All frame count: 0
Drop And Log: All bytes count: 0
Bridge Only And Log: All frame count: 8392
Bridge Only And Log: All bytes count: 1627354
Forwarded And Log: All frame count: 0
Forwarded And Log: All bytes count: 0
L2 ACL OUTPUT Statistics
Drop: All frame count: 0
Drop: All bytes count: 0
Bridge Only: All frame count: 124482163
Bridge Only: All bytes count: 8106003071
Forwarding To CPU: All frame count: 0
Forwarding To CPU: All bytes count: 0
L3 ACL OUTPUT Statistics
Drop: All frame count: 30087
Drop: All bytes count: 2632523
Bridge Only: All frame count: 0
Bridge Only: All bytes count: 0
Forwarding To CPU: All frame count: 0
Forwarding To CPU: All bytes count: 0
Forwarded: All frame count: 6005434614
Forwarded: All bytes count: 10641904392
Drop And Log: All frame count: 30208
Drop And Log: All bytes count: 5266764
Bridge Only And Log: All frame count: 0
Bridge Only And Log: All bytes count: 0
Forwarded And Log: All frame count: 0
Forwarded And Log: All bytes count: 0
parts of my config are:
interface Vlan1
no ip address
shutdown
!
interface Vlan2
ip address 134.117.177.1 255.255.255.0 secondary
ip address 134.117.176.1 255.255.255.0
ip access-group 111 in
no ip redirects
no ip unreachables
!
interface Vlan3
ip address 134.117.178.1 255.255.255.0
ip access-group 121 in
ip access-group 122 out
ip helper-address 134.117.176.14
no ip redirects
no ip unreachables
!
interface Vlan4
ip address 134.117.179.1 255.255.255.0
ip access-group 131 in
ip access-group 132 out
ip helper-address 134.117.176.14
no ip redirects
no ip unreachables
!
interface Vlan10
ip address 10.1.10.1 255.255.255.0
!
vtp mode transparent
udld aggressive
ip subnet-zero
ip routing
!
spanning-tree mode rapid-pvst
spanning-tree loopguard default
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
All hosts are connected at 100mbit or 1gigbit.
What is causing the slow performance?
