Good afternoon to all, I hope your day is going well. I have an interesting issues that has plauged me for about three weeks now. I have a 250Mbps AT&T switched ethernet (ASE) Circuit that was installed about a month ago in a data center about 100 miles away from me. Ever since it was installed I have been having a lot of trouble with it. When I run IPerf against it, the best throughput I am able to achieve is 65-90 Mbps. I have another 250Mbps ASE that works perfectly fine. Both the working circuit and the ailed circuit are configured essentially the same. To add to this, while running back ups against the slower circuit, I am seeing a significant amount of Drops TX on the port. The only noticeable large differances are one uses a fiber port as the uplink and the other uses an ethernet port as an uplink. All vlan 1 traffic is for local addressing, and it is all forwarded back to a central location via a default route. The speed tests I have completed both orginionated from the same machine at the same location. I have included snippits of the configs and show commands below:
Bad Circuit config:
ip route 0.0.0.0 0.0.0.0 X.X.X.X
ip routing
interface 24
rate-limit all out kbps 250000
exit
vlan 1
name "DEFAULT_VLAN"
untagged 1-23,A1-A4
tagged 24
ip address X.X.X.X 255.255.255.0
exit
vlan 339
name "VLAN339"
tagged 24
ip address X.X.X.X 255.255.255.0
exit
spanning-tree
spanning-tree force-version rstp-operation
Bad show int (uplink port only)
DR-1# show int e 24
Status and Counters - Port Counters for port 24
Name :
MAC Address : ecebb8-10b768
Link Status : Up
Totals (Since boot or last clear) :
Bytes Rx : 1,934,220,284 Bytes Tx : 1,020,228,678
Unicast Rx : 38,933,610 Unicast Tx : 24,699,894
Bcast/Mcast Rx : 1,396,441 Bcast/Mcast Tx : 361
Errors (Since boot or last clear) :
FCS Rx : 0 Drops Tx : 3,228
Alignment Rx : 0 Collisions Tx : 0
Runts Rx : 0 Late Colln : 0
Giants Rx : 0 Excessive Colln : 0
Total Rx Errors : 0 Deferred Tx : 0
Others (Since boot or last clear) :
Discard Rx : 0 Out Queue Len : 0
Unknown Protos : 0
Rates (5 minute weighted average) :
Total Rx (bps) : 58,154,168 Total Tx (bps) : 6,656,032
Unicast Rx (Pkts/sec) : 5,375 Unicast Tx (Pkts/sec) : 3,110
B/Mcast Rx (Pkts/sec) : 262 B/Mcast Tx (Pkts/sec) : 0
Utilization Rx : 05.81 % Utilization Tx : 00.66 %
Bad Show int bri (uplink port only)
24 100/1000T | No Yes Up 1000FDx MDI off 0
Below this line is the good configs
Good Config:
ip route 0.0.0.0 0.0.0.0 X.X.X.X
ip routing
interface A1
rate-limit all out kbps 250000
exit
vlan 1
name "DEFAULT_VLAN"
no untagged 23
untagged 1-22
tagged 24,A1-A4
ip address X.X.X.X 255.255.255.0
vlan 339
name "VLAN339"
tagged A1
ip address X.X.X.X 255.255.255.0
exit
spanning-tree
spanning-tree force-version rstp-operation
Good Show int (uplink port only)
Status and Counters - Port Counters for port A1
Name :
MAC Address : 94f128-3ec866
Link Status : Up
Totals (Since boot or last clear) :
Bytes Rx : 1,586,525,170 Bytes Tx : 1,955,749,768
Unicast Rx : 10,759,389 Unicast Tx : 8,007,591
Bcast/Mcast Rx : 6,114,765 Bcast/Mcast Tx : 677,618
Errors (Since boot or last clear) :
FCS Rx : 0 Drops Tx : 282
Alignment Rx : 0 Collisions Tx : 0
Runts Rx : 0 Late Colln : 0
Giants Rx : 0 Excessive Colln : 0
Total Rx Errors : 0 Deferred Tx : 0
Others (Since boot or last clear) :
Discard Rx : 0 Out Queue Len : 0
Unknown Protos : 0
Rates (5 minute weighted average) :
Total Rx (bps) : 573,016 Total Tx (bps) : 160,128
Unicast Rx (Pkts/sec) : 67 Unicast Tx (Pkts/sec) : 43
B/Mcast Rx (Pkts/sec) : 222 B/Mcast Tx (Pkts/sec) : 21
Utilization Rx : 00.05 % Utilization Tx : 00.01 %
Good show int bri (uplink port only)
A1 1000SX | No Yes Up 1000FDx NA off 0