What could cause a throughput problem on my PC client when its connected to the Cisco 575 LRE CPE?
A. If the PC client attached to the Cisco 575 LRE CPE does not support full-duplex flow control, you cannot use the full duplex setting configured on the Cisco 2900 LRE port. Change the duplex setting on the Cisco 2900 LRE port to half duplex and test again. You can also test with the Cisco 2900 LRE port set to 10 Mbps and full-duplex. The Cisco 575 CPE Ethernet port defaults to half-duplex so that it can force collisions when it wants the PC client to slow down. There is very little buffering on the Cisco 575, so when you have a 100 Mbps connection going into a 15 Mbps pipe, you are going to lose packets unless the PC client Ethernet adapter is in half-duplex mode or supports flow control. The Cisco 575 CPE Ethernet port can be configured for full duplex flow control via the Cisco 2900 LRE port, but if the attached PC doesn’t understand flow control, use half duplex. Due to the LRE link limitation of 15 Mbps, you won’t see a performance difference between 100 Mbps/half and 100 Mbps/fu
Related Questions
- Can I connect the Cisco 575 LRE CPE to an Ethernet hub with multiple PC/laptop clients and if so, what is the maximum number of MAC address entries the Cisco 575 CPE can handle?
- Can a hotel use a 2-line phone with the Cisco 575 LRE CPE, assuming the two lines are connected to the single phone port of the CPE?
- What could cause a throughput problem on my PC client when its connected to the Cisco 575 LRE CPE?
