XISP tips,news, & technology » routing http://www.mtin.net/blog Technology relating to networking and the XISP world Fri, 23 Jul 2010 17:43:28 +0000 en hourly 1 http://wordpress.org/?v=3.0 Install Photo of the Day http://www.mtin.net/blog/2010/01/08/install-photo-of-the-day-10/ http://www.mtin.net/blog/2010/01/08/install-photo-of-the-day-10/#comments Fri, 08 Jan 2010 15:57:31 +0000 j2sw http://www.mtin.net/blog/?p=201 Core Routing

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Core Routing

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]]> http://www.mtin.net/blog/2010/01/08/install-photo-of-the-day-10/feed/ 0 Cisco 4 Byte AS http://www.mtin.net/blog/2009/12/18/cisco-4-byte-as/ http://www.mtin.net/blog/2009/12/18/cisco-4-byte-as/#comments Fri, 18 Dec 2009 17:40:22 +0000 j2sw http://www.mtin.net/blog/?p=141 Cisco routers which support 4-byte ASN 1800 2801 2811 2821 2851 3825 3845 7200-NPE-G2 12000-GRP 12000-PRP CAT6000-SUP32/MSFC2A CAT6000-SUP720/MSFC3 CAT6000-VS-S720-10G/MSFC3 ME6524 ASR 1000

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1800
2801
2811
2821
2851
3825
3845
7200-NPE-G2
12000-GRP
12000-PRP
CAT6000-SUP32/MSFC2A
CAT6000-SUP720/MSFC3
CAT6000-VS-S720-10G/MSFC3
ME6524
ASR 1000

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]]> http://www.mtin.net/blog/2009/12/18/cisco-4-byte-as/feed/ 0 BGP Troubleshooting http://www.mtin.net/blog/2009/12/14/bgp-troubleshooting/ http://www.mtin.net/blog/2009/12/14/bgp-troubleshooting/#comments Mon, 14 Dec 2009 05:19:11 +0000 j2sw http://www.mtin.net/blog/?p=110 Some common commands to help with your BGP troubleshooting:

show ip bgp neighbor ip-address – Displays detailed neighbor information show ip bgp – Displays all the routes in the BGP table show ip bgp ip-prefix [mask subnet-mask] – Displays detailed information about all paths for a single prefix debug ip tcp transactions – Displays all TCP transactions debug ip bgp events [...]]]> Some common commands to help with your BGP troubleshooting:

  • show ip bgp neighbor ip-address – Displays detailed neighbor information
  • show ip bgp – Displays all the routes in the BGP table
  • show ip bgp ip-prefix [mask subnet-mask] – Displays detailed information about all paths for a single prefix
  • debug ip tcp transactions – Displays all TCP transactions
  • debug ip bgp events – Displays significant BGP events
  • debug ip bgp keepalives – Debugs BGP keepalive packets
  • debug ip bgp updates – Displays all incoming or outgoing BGP update

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]]> http://www.mtin.net/blog/2009/12/14/bgp-troubleshooting/feed/ 0 BGP Session establishments http://www.mtin.net/blog/2009/12/09/bgp-session-establishments/ http://www.mtin.net/blog/2009/12/09/bgp-session-establishments/#comments Thu, 10 Dec 2009 03:07:52 +0000 j2sw http://www.mtin.net/blog/?p=101 Keepalive are sent every 60 seconds

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  • Idle.
  • Active.
  • OpenSent.
  • OpenConfirm.
  • Established.

    • Keepalive are sent every 60 seconds

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    ]]>     http://www.mtin.net/blog/2009/12/09/bgp-session-establishments/feed/ 0     Minimizing Size of BGP routing table http://www.mtin.net/blog/2009/12/02/minimizing-size-of-bgp-routing-table/ http://www.mtin.net/blog/2009/12/02/minimizing-size-of-bgp-routing-table/#comments Wed, 02 Dec 2009 18:36:20 +0000 j2sw http://www.mtin.net/blog/?p=89 To create an aggregate entry in the BGP routing table: aggregate-address address mask

    To advertise summary addresses only: aggregate-address address mask as-set Blog this on Blogger Subscribe to the comments for this post? Share this on del.icio.us Share this on Facebook Email this via Gmail Add this to Google Bookmarks Email this via Hotmail Share this on LinkedIn Post this to MySpace Tweet This! Submit this to Twittley Email this via [...]]]>     To create an aggregate entry in the BGP routing table:
    aggregate-address address mask

    To advertise summary addresses only:

aggregate-address address mask as-set

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    ]]>     http://www.mtin.net/blog/2009/12/02/minimizing-size-of-bgp-routing-table/feed/ 0     What is BGP soft reconfiguration? http://www.mtin.net/blog/2009/11/27/what-is-bgp-soft-reconfiguration/ http://www.mtin.net/blog/2009/11/27/what-is-bgp-soft-reconfiguration/#comments Fri, 27 Nov 2009 16:04:19 +0000 j2sw http://www.mtin.net/blog/?p=62 When changes are made to a BGP session the changes are not activated until the BGP peering is reset.  When the session is reset the routing tables are exchanged.  This can cause interruptions. This is where soft reconfiguration helps.  Changes can activated without clearing the entire session.

    There are two types of soft reconfiguration. Inbound & Outbound.  [...]]]> When changes are made to a BGP session the changes are not activated until the BGP peering is reset.  When the session is reset the routing tables are exchanged.  This can cause interruptions. This is where soft reconfiguration helps.  Changes can activated without clearing the entire session.

    There are two types of soft reconfiguration. Inbound & Outbound.  Inbound is an updated generated by the customer to the provider.  Outbound is an updated by the provider toward the customer.

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    ]]> http://www.mtin.net/blog/2009/11/27/what-is-bgp-soft-reconfiguration/feed/ 0     New Series – WISP Redundancy http://www.mtin.net/blog/2009/11/20/new-series-wisp-redundancy/ http://www.mtin.net/blog/2009/11/20/new-series-wisp-redundancy/#comments Fri, 20 Nov 2009 14:25:09 +0000 admin http://www.mtin.net/blog/?p=27 Over the next several weeks we will be focusing on WISP redundancy. Please let us know any questions, topics, or other information you are interested in.

    Blog this on Blogger Subscribe to the comments for this post? Share this on del.icio.us Share this on Facebook Email this via Gmail Add this to Google Bookmarks Email this via Hotmail Share this on LinkedIn Post this to [...]]]>     Over the next several weeks we will be focusing on WISP redundancy. Please let us know any questions, topics, or other information you are interested in.

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    ]]>     http://www.mtin.net/blog/2009/11/20/new-series-wisp-redundancy/feed/ 0