Monday, February 9, 2009

IPExpert Day 3 Notes ...

Well first off - I've changed the layout. Hopefully this one looks a little more friendly and easier to read.

Moving on, here are some of my notes and pointers from the IPExpert CoD
  • spanning-tree vlan x forward-time sec to reduce ST convergance time
  • frame-relay map bridge [dlci] to enable FR bridging.
  • On 3550, bridge protocol vlan-bridge instead of protocol ieee
  • macro name [name] to define macro, macro apply [name] under interface to apply macro.
  • backbonefast used to enable fast switchover to alternate RP
  • spanning-tree link-type point-to-point is SP macro for host ports
  • spanning-tree mst configuration to enter MST configuration mode.
  • mst will always have a default instance 0 for unassigned vlans
  • mac access-list extended [name] for defining mac ACL
  • vlan access-map functions just like a route-map.
  • vlan filter [map name] vlan-list [vlans] to apply vlan map
  • switchport protected prevents protected ports from talking to other protected ports.
  • errdisable recovery... to restore errdisabled ports automagically
  • dot1x system-auth-control to enable dot1x, otherwise dot1x is disabled
  • storm-control broadcast/multicast/unicast level [percentage] under interface config to enable storm control
  • SDM templates alters switch memory allocation. Available templates are access, extended-match, routing and vlan. Enable with 'sdm prefer [mode]'. Require switch reload.
  • split horizon needs disabled for PtM hub routers in FR
  • For secondary IPs, primary IP must be advertised 1st, split horizon is likely to have effect and can't use passive interface for primary IP
  • Distance can be set globally or per route
  • Broadcast and non-broadcast elect DR/BDR; hub must be DR
  • Use 'sh ip ospf int' to determine network types
  • If you can't change network type, use neighbor command.
  • 'ip ospf mut ignore' switch setting for ignoring MTU differences
  • Stub area = internal and default
  • NSSA = Internal, Default and Externals directly entering area
  • Totally Stub = interarea only and default
  • distribute-list in filters from OSPF DB to routing table
  • You can filter between areas - area x filter-list prefix [prefix list]
  • dead-interval minimal sets dead timer to 1sec, multiplier is hellos per 1 sec
  • With RIP, use neighbor and passive-interface to enable unicast updates only
  • 'no validate update-source' to disable source verification, ie; for secondary IPs
Well, that is all for now. In other news, I've scheduled my bootcamp for March 19, 2009 in Chicago. This is Narbik's bootcamp and I am definitely looking forward to it. I've already received the Soup-To-Nuts workbook and I plan on starting this after the IPExpert CoD.

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