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Cisco 1760 my default GW. Optimizing external interface.

Nathan Cole
Level 1
Level 1

Hello, my current setup is....

[comcast 10 Mbps]<----->[Cisco 1760]<------->[Dell PowerConnect 3024]--------[LAN]

I have a WIC-1ENET on my 1760 connected to the the motorola cable modem.  I was wondering if there are any specific commands I should apply to an external interface to improve performance, or keep unwanted traffic from being sent out.

interface Ethernet0/0
ip address dhcp
no ip redirects
no ip proxy-arp
ip nat outside
no ip route-cache cef
no ip route-cache
no ip mroute-cache
half-duplex
priority-group 1
no cdp enable

That is my current setup for my external interface.  I have the priority set for my xbox 360.  So that netflix gets highest priority.  This allows for me to get HD streams 90% of the time, with little to no slow downs from others using the network.  I would like to set full-duplex, but doing so brings the connections to the internet down to a crawl.  I don't know if this is because the cable modem needs to be reset after full-duplex has been set, or what.

I have seen some configurations with a hold-queue value.  Would this help me any?  Speed tests using dlsreports i see about 8Mbps/1.5Mbps down/up.  I have modified the nat tcp timeout to 10 minutes.

Thanks for any information guys.

4 Replies 4

Hitesh Vinzoda
Level 4
Level 4