nanog mailing list archives
Re: Router for Metro Ethernet
From: Jeffrey Negro <jnegro () billtrust com>
Date: Mon, 12 Apr 2010 14:26:21 -0400
In our case I believe we would be dealing with just static routes and a lines of ACL. Do you think the routing protocols are your largest resource usage in your scenario, or is it also just simple routing as well? Jeffrey Negro, Network Engineer Billtrust - Improving Your Billing, Improving Your Business www.billtrust.com 609.235.1010 x137 On Mon, Apr 12, 2010 at 1:55 PM, Dylan Ebner <dylan.ebner () crlmed com> wrote:
We use metro E for our WAN and our internet access delivery. The 2600 series routers do not have enough horsepower to do a 40 Mb connection and eigrp. The 2811 can do 40 mb and eigrp but they start to have difficulty when you add in inspection or large ACLs. We just last week turned a 40mb metroe circuit into a 60mb and the router, a 2811, is now have constant problems. We are replacing it with a 2921. However, this router also has 2 100mb connections from local lans that it is also terminiating. For our 100mb metro e connections we use 3845s. The 100 mb service terminates into NM-GEs, which have a faster throughput than the hwics. This setup works well. On our internet edges we use 2811s with their memory maxed. We have partial BGP routers from 2 isps. One connection is a 30mb and the other is a 25mb. no inspection is done on these but we do have stateless acls running on the inbound. these are running just fine today, but they sit at about 20% cpu all the time. When doing a metro e connection, make sure the router/switch can do traffic shaping. If it can't, you are relying on the provider to shape your outgoing traffic, which of course will happen down the line, adding additional delay during high usage times. You should also look at the new cisco small metro switches. They can traffic shape, do bgp and have more than one interface. one of the annoying thing about metro e(at least with qwest) is they have a tendancy to install new pe switches at your locations when you upgrade your service. this means a new connection from them and unless you have extra fiber or copper ports on your router. So to transition to the new circuit, you need to unplug your existing service first. And that means downtime, which no one likes. Dylan -----Original Message----- From: Jeffrey Negro [mailto:jnegro () billtrust com] Sent: Monday, April 12, 2010 12:29 PM To: nanog () nanog org Subject: Router for Metro Ethernet Before I get taken for a ride by salespeople, I figured it would be best to ask the experts of Nanog.... My company is currently in talks to bring an ethernet circuit into our headquarters, initially committing around 40Mbps. The ISP will be providing ethernet handoff, but I do not want their managed router offering (Adtran 4430) since it is pricey, non-redundant and I'd rather manage it myself. My question is about hardware. Can I assume that I can use something like a Cisco 2000 series router with two built in fast/gig ethernet ports, without a WIC? and since both sides are ethernet would the routing throughput be near fast ethernet speed? This is my first dealing with metro ethernet offerings, and I don't want to assume that the Cisco throughput rates listed for T1/ADSL etc. are the same for a metro ethernet as the WAN. Any and all suggestions on the hardware would be greatly appreciated. Thank you in advance!
Current thread:
- Router for Metro Ethernet Jeffrey Negro (Apr 12)
- RE: Router for Metro Ethernet Dennis Burgess (Apr 12)
- Re: Router for Metro Ethernet Owen DeLong (Apr 12)
- RE: Router for Metro Ethernet Dennis Burgess (Apr 13)
- Re: Router for Metro Ethernet Owen DeLong (Apr 12)
- RE: Router for Metro Ethernet Murphy, Jay, DOH (Apr 12)
- RE: Router for Metro Ethernet Dylan Ebner (Apr 12)
- Re: Router for Metro Ethernet Christopher J. Pilkington (Apr 12)
- Re: Router for Metro Ethernet Jeffrey Negro (Apr 12)
- Re: Router for Metro Ethernet Kevin Loch (Apr 12)
- RE: Router for Metro Ethernet Dylan Ebner (Apr 12)
- Re: Router for Metro Ethernet Jon Lewis (Apr 12)
- Re: Router for Metro Ethernet Franck Martin (Apr 12)
- Re: Router for Metro Ethernet Mikael Abrahamsson (Apr 12)
- RE: Router for Metro Ethernet Holmes,David A (Apr 13)
- Re: Router for Metro Ethernet Brandon Ewing (Apr 13)
- Re: Router for Metro Ethernet Rubens Kuhl (Apr 13)
- Re: Router for Metro Ethernet Tim Franklin (Apr 14)
- RE: Router for Metro Ethernet Dennis Burgess (Apr 12)