Blogs1 - 10 of 596 recent posts for tag:routing
21
Nov
2009
Interior Gateway Protcol (IGP) 1/6: Introduction

6 hours ago by Jeff Dimond

This is the first post in a 6 part series covering various interior gateway protocols( IGP). Over the next 6 posts we will touch on the most used routing protocols and their pros and cons. The goal is to help you better understand routing and allow you to pick the protocol that is best suited to you ...

ill communications - illcommunications.com · 1 reference

RIP - Routing Information Protocol

16 hours ago

RIP (Routing Information Protocol) is a distant vector routing protocol. RIP algorithm has been since the early days of ARPANET. Currently, there are 2 versions of RIP as the Routing Information Protocol version 1 (RIPv1) and Routing Information Protocol Version 2 are known (RIPv2). More information ...

Apple iMac MC413LL/A - mc413lla.com · 3 references

BGP basics

20 hours ago by jay

I created this post to refresh myself with the basic topics of BGP as it’s been quite a while since ive tinkered with it. Attributes Origin – Must Pass to Everyone * IGP = i (network) * EGP = E (ebgp) * Incomplete = ? (redistributed) as_path – Must Pass to Everyone * List of traveled AS through. * M ...

geekywiki - somerandomgeek.net/wordpress

OSPF Random Features

1 day ago by jay

* OSPF can be configured to ignore MOSPF packets router ospf 1 ignore lsa mospf * OSPF can be configured to ignore the MTU on DBD packets so that routers with different MTUs can become adjacent. int f0/0 ip ospf mtu-ignore * OSPF can use name resolution for neighboring routers ip ospf name-lookup ! ...

geekywiki - somerandomgeek.net/wordpress

OSPF Resource Limiting

1 day ago by jay

You can limit the totalnumber of LSAs in the database as a whole and the max number of redistributed LSAs and the max percentage of CPU that the router will consume before allowing other processes to interrupt it. These are documented below. router ospf 1 max-lsa 5000 redistribution maximum-prefix 5 ...

geekywiki - somerandomgeek.net/wordpress

OSPF Global Timers

1 day ago by jay

*Configure SPF Throttling to start relcalculation at least 100ms after new LSA arrives. The second SPF calculation should occur in no less than 1s after first one, and maximum wait time should be no more than 10 seconds. * Configure LSA pacing to wait at least 50 ms between consecutive link-state up ...

geekywiki - somerandomgeek.net/wordpress

OSPF Interface intervals

1 day ago by jay

OSPF changes the dead-interval (to 4 times hello) whenever the hello-interval changes, but not vice versa. You can configure subsecond hello intervals also. I have listed the commands below which will set hello/dead to 5/10 and 250ms/1 sec. int s0/0/0 ip ospf hello-interval 5 ip ospf dead-interval 7 ...

geekywiki - somerandomgeek.net/wordpress

OSPF Stub Router Advertisement

1 day ago by jay

OSPF allows a router to specify a max-metric so that it can gracefully be removed from the network without having to wait around for timers to expire and the like. This will allow the specified router to update its Type-1 LSA to max metric which will force neighbors to recompute. Here is a neighbor’ ...

geekywiki - somerandomgeek.net/wordpress

OSPF database filtering

1 day ago by jay

you can configure a router to filter all LSAs to a specified neighbor or out a specified interface using the following commands… Notice, when using the neighbor command you must specify the router IP in which you receive the updates from NOT the router-id. First, filtering to a specified neighbor… r ...

geekywiki - somerandomgeek.net/wordpress

20
Nov
2009
OSPF NSSA ABR External Prefix filtering

1 day ago by jay

Lets say we want to stop advertising an external route out of the area. We can do this with ABR External prefix filtering. This is done on the Type7-to-Type5 Translator ABR, which is the router with the highest router-id in the nssa. This can easily be accomplished by creating a summary address on t ...

geekywiki - somerandomgeek.net/wordpress

Previous1234567