You can install an NM-HSSI and an external E3 CSU/DSU or use an internal NM-1TE3 to terminate a clear channel link.
Cisco also built an NM-1A-E3 ATM card as well. In the US the DS3 counterpart to this card was typically used for DSL providers, while the clear channel card or HSSI + external CSU/DSU was used for internet connectivity. So the machine can physically terminate the link and it can stand a full circuit worth of traffic, but if you're considering running BGP *BE CAREFUL*. A little while ago I was working on a 128 meg Cisco 7206 connected to Sprint via a DS3. IOS grabbed 16 meg for packet buffer in the presence of the high speed interface and the 122k BGP routes from Sprint were too much for the remaining memory. A Cisco 2650 with 128 meg can still take full routes from Sprint because it has much less buffer space allocated, but in general I'm treating 128 meg boxes as ticking bombs if they're connected to Tier 1 providers - its just a matter of time - maybe this time next year - before they just stop working due to memory issues. Cappuccio Victor wrote: > > Hello people > > I what to know if a Cisco 3640 Router can support a E3 connection ?? > > Regards > Victor. > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html -- mailto:[EMAIL PROTECTED] phone:402-301-9555 "After all that I've been through, you're the only one who matters, you never left me in the dark here on my own" - Widespread Panic Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=74800&t=74800 -------------------------------------------------- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
