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Bonding T1 lines together MPPP

admin — Wed, 24 Mar 2010 23:16:50 +0000

When companies who have a T1 connections to the internet run out of bandwidth they have a few choices. One is to order the latest service called metro ethernet. The second is to order a second T1 from your provider. When you order the T1 line let them know you want to line bonded, or in cisco router terms MPPP, or multilink PPP. This allows you to aggregate T1 bandwidth in 3M, 4.5M and so on. This looks like one big pipe when packets go out to the internet.

Multilink PPP allows you to bond multiple T1 lines into one larger line. This MPPP line is assigned one set of ip addresses, while the individual lines that make up the MPPP line do not. The intersting thing is if either of your T1 connections where to drop, the MPPP connection stays up. Once the cisco router is setup for MPPP its very easy to add or subtract T1 lines.

The first thing to do in your router is to create the MPPP interface:
config t
interface Multilink2
description Multilink PPP connection
ip address 192.168.0.2 255.255.255.252
ip verify unicast reverse-path
no ip redirects
no ip proxy-arp
no ip route-cache
no cdp enable
ppp multilink
multilink-group 1
no clns route-cache

The important part of this is the “multilink-group 1″ part. This says any T1 that is assigned this group id, is part of the multilink interface.

Now we go configure our normal serial port like this:
conf t
interface Serial2/0/9:0
description first multilink PPP T1 line
no ip address
ip verify unicast reverse-path
no ip redirects
no ip proxy-arp
encapsulation ppp
no ip route-cache
load-interval 30
fair-queue 64 16 0
down-when-looped
no cdp enable
ppp multilink
multilink-group 1
no clns route-cache

notice how we dont assign an ip address to the serial port. Also we assign the “multilink-group1″ so it knows its part of the multilink PPP connection.

We would do the same for any other serial connection that we want to be part of the parent multilink line.

The one single catch to all of this is you need to have cisco IOS version 12.2(13)T or greater. This is when Multilink PPP was introduced.

In addition you cant just do this on your side alone. The opposite side also has to be configured as MPPP for the whole thing to work.

Make sure to check out our T1 service offerings.

Metro Ethernet for Internet Access

admin — Thu, 18 Mar 2010 23:07:04 +0000

Metro Ethernet is a new type of internet access service. Its mainly used in medium to large businesses or customers that have high bandwidth demands.
Metro ethernet is a replacement for T1 service. In addition to the solid reliability of a T1, it also allows higher bandwidth, up to 1G. Because it runs on dual ring fiber connections between your location and the location of your ISP, its a very reliable connection. It can also be used to inter connect your multiple business locations, if you need to transfer lots of data between locations.c

Metro Ethernet gets handed off to your business as a typical ethernet connection. In most instances you would plug this onnection directly into your firewall. This makes setup of the connection very simple.

The future of the internet is changing, and so are the types of connections possible nowadays.
If metro ethernet is something your business could use, check out our service possibilities for metro ethernet here

Setup Spam Filtering Rules for Thunderbird

admin — Fri, 12 Mar 2010 23:42:27 +0000

This explains how to setup Spam filtering for thunderbird. Hypersurf Internet “tags” all email that come in with a spam score. This spam score can then be used to filter unwanted emails that are most likely spam.

Here is what you do. Open up thunderbird, and go to Tools/Message filters.

Now a new screen should come up that looks like this. Click the “New” button.

Once there, click “Customize”. A box should open up like this.

A box should open up, like the one below. Then type “X-Spam-Score” in the New message header box; click the Add button and then OK.

Now in the left drop down, look for “X-Spam_Score”, that you just created.

The middle dropdown should say contains.

The right drop down should say “*****”

The number of stars you give determines how aggressive the filter is.

2 aggressive, may catch alot of spam, and maybe some real messages.

5 is middle of the road, catch most spam.

10 means may not catch much, probably wont catch real messages

Then tell it what to do if it finds spam. I tell it to move to a folder. That way I can review later, if I choose.

Once that is done click ok, and your filter should start catching spam.

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Speedstream 5100 Light Status

admin — Fri, 26 Feb 2010 21:44:28 +0000

This article will explain the normal light status of the Speedstream 5100 modem. The speedstream 4100 DSL modem also has similar light status so it can be used as well. The light status will help to determine if there is a problem with your DSL connection. These modems are mainly used with ATT home DSL service nationwide.

Power – When the modem is rebooted this light will flash red, once the modem has completely booted it will show a steady green color.

Ethernet – This is the light status of the ethernet link. Its initially off until a cat 5 Ethernet cable is inserted into the Ethernet jack in the back. Once its inserted properly the light will turn solid green when you have a successful link.

DSL – This light will will blinking Red until it completes a successful link with the DSL equipment on the other end. If this light continues to blink red, you have a problem with your line, and should call for support.

Internet – This light will be out if your provider doesnt do PPPoE. If it does it will be Red will trying to initiate a PPPoE connection. Once it establishes a successful connection it will turn green.

Activity – Flashing green means normal DSL traffic is flowing thru the device. Or it could be steady green if there is a steady flow of traffic.

www.accesscom.com/dsl_services.html

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