Would this not also be a function of just what the ISP has/wants on the far end?
My hookup uses a 3Com Accessbuilder 6100 I-Mux --- HSSI---Cisco 7200. The three T1's are inverse multiplexed on the 3Com. Scaleable to 7 T1's. 'Couse this is a 'Cisco' newsgroup.... Best, G. > -----Original Message----- > From: James Willard [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, January 29, 2002 12:33 PM > To: [EMAIL PROTECTED] > Subject: RE: Aggregate 3 T1's would this work. [7:33599] > > > John, > > What you want to look at is Cisco Express Forwarding (CEF). > It allows load > balancing across multiple T1's. For each serial interface you > would have > your own subnet (such as a /30) to your provider, because the serial > interfaces cannot be on the same subnet. Turn on CEF using > "ip cef" globally > (you may want to ensure you have a recent IOS, as CEF was > buggy early on). > Then, on each serial interface, issue either "ip load-sharing > per-packet" or > "ip load-sharing per-destination" depending on how you want the load > distributed. To give you the full 4.5Mbps to any one site, > use per-packet > load balancing. > > James Willard, CCNA > [EMAIL PROTECTED] > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > John Jones > Sent: Tuesday, January 29, 2002 3:17 PM > To: [EMAIL PROTECTED] > Subject: Aggregate 3 T1's would this work. [7:33599] > > > I have a configuration question. > I have 3 dedicated T1's a router 3620 with three T1 CSU/DSU and one > FastEthernet ports installed. All dedicated T's are from the same ISP. > I want to aggregate the three T1's for increased bandwidth (4.5 Mbps) > Would I run into issues > > Here is my config. Would this work? > > > ! > hostname Cisco3620 > ! > ! > no ip name-server > ! > ip subnet-zero > no ip domain-lookup > ip routing > ! > interface Ethernet 0/0 > no description > ip address 172.16.10.1 255.255.255.0 > ! > interface Serial 0/0 > no shutdown > ip address 1.1.1.2 255.255.255.248 > ! > interface Serial 0/1 > no shutdown > ip address 1.1.1.3 255.255.255.248 > ! > interface Serial 1/0 > no shutdown > ip address 1.1.1.4 255.255.255.248 > ! > ip route 0.0.0.0 0.0.0.0 serial0/0 > ip route 0.0.0.0 0.0.0.0 serial0/1 > ip route 0.0.0.0 0.0.0.0 serial1/0 > > ! > ! > ip classless > no ip http server > ! > end > > > I tried this config with Cisco's config maker and I get IP > address errors on > the serial ports, specifically being on the same subnet. > Would this do basic aggregation? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=33611&t=33599 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
