Re: The rule of Threes. (or also known as "How many ways can I

From: Anthony Sequeira (terry.francona@gmail.com)
Date: Mon Oct 17 2005 - 20:46:16 GMT-3


Here is my list that I have combined with yours - great job creating a very
valuable study aid for the group.....one problem here, however - I think we
are still just scratching the surface - but at least it is a start. THIS
LIST COULD SAVE YOUR BACON IN THE EXAM FOR SURE.
  Configuration Options 3550 *Load Balancing with STP*

Option 1  STP cost  use on the downstream device

Option 2  Port Priority  use on the upstream device

 OSPF *Advertising Masks for Loopbacks in OSPF*

Option 1  OSPF network command

Option 2  Redistribute connected  Watch for Later Redistribution Issues

Option 3  Area Range command
*Troublshooting Neighbor Relationships in OSPF over NBMA*

Option 1  OSPF network command

Option 2  Hello timer manipulation
*Connecting Area 0s in OSPF*

Option 1  Virtual link

Option 2  GRE Tunnel  often needed when area between is a stub area

 *Sending Unicast Updates in OSPF*

Option 1  neighbor command and change network type/hello interval

 *Load Balance in OSPF  change to equal cost *

Option 1  use the bandwidth command

Option 2  ip ospf cost command
*Introducing a Network into OSFP without Updating Neighbor's LSDB*

Option 1  no-advertise

Option 2  area filter-list

 ATM *Static Mappings in ATM*

Option 1  Legacy method  use of the map-list command

Option 2  protocol command under the PVC

 BACKUP

 *ISDN Backup*

Option 1  Floating Static

Option 2  Dialer Watch

Option 3  Backup Interface

Option 4  OSPF Demand Circuit (OK  not really backup method  but can b
eused in backup scenario)

Option 5  Snapshot routing with distance command to prefer IGP

Option 6  Policy Routing  default next-hop; verify-reachability

 ISDN/PPP

* *

*PPP Multilink*

Bring up second link regardless of utilization

Option 1  dialer load-threshold 1

Option 2  ppp multilink links minimum 2

 IS-IS *Advertising Loopbacks in ISIS*

Option 1  ip router isis under interface

Option 2  passive interface

Option 3  redistribute connected

 MULTICAST

 *Assigning RP in Multicast*

Option 1  Static

Option 2  Auto-RP

Option 3  BSR Candidates

 QOS

 *Setting the Frame-Relay DE Bit*

Option 1  DE List

Option 2  Set action in policy map

Option 3  Police action

 *Limiting Bandwidth in QoS for a Specific Host*

Option 1  Rate-Limiting

Option 2  Policing

Option 3  Shaping

 RIP

 *Changing RIP updates to Unicast*

Option 1  Passive interface and neighbor command

Option 2  NAT the multicast address to a unicast

 *Do Not Accept Prefixes  RIP*

Option 1  Distribute list

Option 2  Offset list

Option 3  Administrative Distance

 BGP

 *Device in Transit Path Not Running BGP*

Option 1  GRE Tunnel

Option 2  Redistribute BGP into IGP

 *BGP Traffic Flows*

Manipulate outbound traffic flows

Option 1  weight inbound

Option 2  Local preference inbound

 *BGP Traffic Flows*

Manipulate inbound traffic flows

Option 1  AS-path prepend outbound

Option 2  MED outbound

 *Advertise Prefix into BGP*

Option 1  network statement

Option 2  Aggregate address statement

Option 3  Redistribution

 REACHABILITY

* *

*Reachability*

Option 1  NAT

Option 2  Aggreagate

Option 3  Static

Option 4  Redistribution

Option 5  Policy Routing

Option 6  Default Route Generation

Option 7  Default Route

Option 8  Route-map

Option 9  Tunnel

 On 10/16/05, Hilgendorf, Sam <sam.hilgendorf@berbee.com> wrote:
>
> ?
> OK, I've cumulated the other additions and came up with a few more of my
> own. Anymore thoughts? Anyone want to argue the specified ways below
> (more/less/completely wrong?)
>
> _____________________________________________________________________________________________________________________________
>
>
> Specify which VLAN's will traverse which trunks when there are at least 2
> to the same destination - 2 Ways (Port Cost, Port-priority)
>
> Setting-up static map for ATM PVC - 2 Ways (Map lists, protocol)
>
> ISDN Backup - 3 Ways (Floating Static, Backup Interface, and Dialer Watch)
>
> Advertising Loopbacks with Masks in OSPF - 3 Ways (ip ospf network,
> redistribute, and summarization at an ABR)
>
> Troubleshooting Neighbor Relationships for OSPF over NMBA - 2 Ways (ip
> ospf network, hello timer)
>
> Connecting Disparate Area 0's - 2 Ways (Virtual-link, GRE Tunnel)
>
> Introducing a network into OSFP without updating neighbors' LSDB - 2 Ways
> (no-advertise, area filter-list)
>
> Advertising Connected Networks in IS-IS - 3 Ways (ip router isis, Passive
> Interface, Redistribute Connected)
>
> Assigning RP in Multicast - 3 Ways (Static, Auto-RP, BSR Candidates)
>
> Limiting bandwidth in QoS for a specific host - 3 Ways, at least.
> (Rate-Limiting, Policing, Shaping)
>
> Changing RIP updates to Unicast - 2 Ways (passive interface/neighbor, NAT
> the Multicast address to a Unicast address)
>
> Setting the Frame-Relay DE Bit - 3 Ways (DE List/group, Set action in
> Policy map, Police Action)
>
>
>
> ______________________________________________________________________________________________________________________________
> Thanks,
> James (Sam) Hilgendorf
> Berbee
> Network Engineer
> N14W23833 Stone Ridge Drive, Suite 100
> Waukesha, WI 53188
> Phone: 262.521.5651
> Fax: 262.523.5642
> Cell: 414.617.9745
> sam.hilgendorf@berbee.com <mailto:sam.hilgendorf@berbee.com>
> http://www.berbee.com <http://www.berbee.com/>
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html



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