Ping (Normal)

Ping (Extended,Privilege)

Trace

Show ip route

 

 

•Show session

•Show line

•Clear line x

•Who

<Ctrl-Shift-6> X

     

 

•hostname R6

line con 0

    exec-timeout 0 0

No ip domain-lookup

No exec-timeout

Ip subnet-zero

Login password (configured)

Vty password  (configured)

Enable password

No logg console (logg console) or logg syn(line con 0)

No logg buffer (logg buffer)

Ip Classless

<Ctrl-Shift-6>X

 

•Config a Router as a frame relay switch

Frame-relay switching

interface serial 1

         encapsulation frame-relay

         frame-relay intf dce

         frame-relay lmi-type ansi

         frame-relay route 102 interface s2 201

         frame-relay route 103 interface s3 301
….

         Clockrate 64000(options)

interface serial 2

         encapsulation frame-relay

         frame-relay intf dce

         frame-relay lmi-type ansi

         frame-relay route 201 interface s1 102

         frame-relay route 203 interface s3 302
…

         Clockrate 64000(options)

 

 

•RIP Commands

                   Router rip

                   ip rip send v 1/ v 2

                   Neighbor x.x.x.x(when use passive interface)

                   Offset list

                   split-horizon ( in interface)

                   Show ip protocols

 

 

*auto-summary             Enable Automatic Network Number Summarization

**default-information     Control Distribution of Default Information

**default-metric             Set Metric of Redistributed Routes

**distance                     Define an Administrative Distance

***distribute-list             Filter Networks in Routing Updates

*flash-update-threshold         Specify Flash Update Threshold in Second

*maximum-paths           Forward Packets Over Multiple Paths

 

**neighbor                    Specify a Neighbor Router

***network                    Enable Routing on an IP Network

*offset-list                    Add or Subtract Offset From IGRP or RIP Metrics

*passive-interface        Suppress Routing Updates on an Interface

***redistribute               Redistribute Information from Another Routing           Protocol

*timers                          Adjust Routing Timers

*traffic-share                Algorithm for Computing Traffic Share for Alternate Routes

*validate-update-source        Perform Sanity Checks Against Source Address of
                                     Routing Updates

**version                       Set Routing Protocol Version

•

 

Rtr(config-if)#ip rip ?

  **Authentication  Authentication Control

  **receive             Advertisement Reception

  **send         Advertisement Transmission

 

•

 

EIGRP Command

 

*auto-summary                  Enable Automatic Network Number Summarization

**default-information         Control Distribution of Default Information

**default-metric                  Set Metric of Redistributed Routes

**distance                           Define an Administrative Distance

***distribute-list                  Filter Networks in Routing Updates

*eigrp                          EIGRP Specific Commands

*maximum-paths      Forward Packets Over Multiple Paths

 

metric                          Modify IGRP Routing Metrics and Parameters

**neighbor                 Specify a Neighbor Router

***network                  Enable Routing on an IP Network

*offset-list                             Add or Subtract Offset from IGRP or RIP Metrics

*passive-interface    Suppress Routing Updates on an Interface

***redistribute           Redistribute Information From Another Routing Protocol

*timers                        Adjust Routing Timers

*traffic-share              Algorithm for Computing Traffic Share for Alternate Routes

*variance                    Control Load Balancing Variance

•

 

Rtr(config-if)#ip hello-interval eigrp 1 ?

                   <1-65535> Seconds between hello transmissions

         Rtr(config-if)#ip hold-time eigrp 1 ?

                   <1-65535> Seconds before neighbor is considered down

         Rtr(config-if)#ip split-horizon eigrp ?

                   <1-65535> Autonomous system number

        

 

RIP/IGRP/EIGRP Split Horizon

 

•Serial Interfaces

     .Frame Relay not enabled – Split Horizon is enabled

     .Frame Relay enabled, no sub interface - Split Horizon is disabled

     .Frame Relay enabled, sub-interfaces - Split Horizon is enabled

 

 

Useful Command in OSPF

 

•Show ip ospf nei

•Sh ip protocols

•Sh ip ospf interface

•Sh ip ospf database

•Debug ospf adj

 

 

Rtr(config)#router ospf 1

Rtr(config-router)#?

Router Configuration Commands:

***area                        OSPF Area Parameters

**auto-cost                 Calculate OSPF Interface Cost According to Bandwidth

*default-information Control Distribution of Default Information

*default-metric           Set Metric of Redistributed Routes

*distance           Define an Administrative Distance

*distribute-list            Filter Networks in Routing Updates

**neighbor                  Specify a Neighbor Router

***network                  Enable Routing on an IP Network

*passive-interface              Suppress Routing Updates on an Interface

***redistribute            Redistribute Information from Another Routing                            Protocol

*router-id           Router-id for this OSPF Process

***summary-address        Configure IP Address Summaries

*timers                        Adjust Routing Timers

 

 

Rtr(config-router)#area ?

  <0-4294967295>  OSPF Area ID as a Decimal Value

  A.B.C.D OSPF Area ID in IP Address Format

 

Rtr(config-router)#area 1 ?

**Authentication        Enable Authentication

*default-cost              Set the Summary Default-cost of a NSSA/stub Area

*nssa                          Specify a NSSA Area

***range                                        Summarize Routes Matching Address/mask
(Border Routers Only)

*stub                                     Specify a Stub Area

***virtual-link              Define a Virtual Link and its Parameters

•

 

Rtr(config-router)#default-information originate ?

  Always  Always Advertise Default Route

  metric             OSPF Default Metric

  metric-type    OSPF Metric Type for Default Routes

  route-map     Route-map Reference

  <cr>

•

 

Rtr(config-if)#ip ospf ?

  ***authentication-key     Authentication Password (Key)

  **cost    Interface Cost

  *database-filter               Filter OSPF LSA During Synchronization and                               Flooding

  *dead-interval                 Interval After Which a Neighbor is Declared Dead

  ***demand-circuit          OSPF Demand Circuit

  *hello-interval                  Time Between HELLO Packets

  ***message-digest-key         Message Digest Authentication Password (Key)

  ***network                       Network Type

  ***priority                         Router Priority

  *retransmit-interval        Time Between Retransmitting Lost Link State                                      Advertisements

  *transmit-delay               Link State Transmit Delay

 

•3550

 

Spanning Tree

*forward-time  Set the forward delay for the spanning tree

* hello-time       Set the hello interval for the spanning tree

* max-age          Set the max age interval for the spanning                      tree

*** priority        Set the bridge priority for the spanning                                 tree

***root               Configure switch as root

 

**backbonefast  Enable BackboneFast Feature

**etherchannel  Spanning tree etherchannel specific configuration

*extend        Spanning Tree 802.1t extensions

***pathcost      Spanning tree pathcost options

***portfast      Spanning tree portfast options

**uplinkfast    Enable UplinkFast Feature

 

ATM PVC Configuration Example

 

interface atm2/0

   encapsulation aal5snap

   ip address 192.192.192.1 255.255.255.0

   pvc 0/106
   protocols ip 192.192.192.2 broadcast

 

interface atm2/0

   encapsulation aal5snap

   ip address 192.192.192.2 255.255.255.0

   pvc 0/106
   protocols ip 192.192.192.1 broadcast

 

End-Station Configuration Example

interface ATM3/0

 no ip address

 pvc 0/5 qsaal

 pvc 0/16 ilmi

!

!

interface ATM3/0.1 multipoint

 ip address 1.1.1.1 255.255.255.0

 atm esi-address 777777777777.00

atm arp-server nsap self

         or

 atm arp-server nsap 47.009181000000001007386901.555555555555.00

 

 

ATM Feature Example

 

 

hostname RtrA

!

interface ATM3/0.1 point-to-point

 ip address 1.1.1.1 255.255.255.0

 pvc 0/108

  class-vc vclass

  protocol ip 1.1.1.2

  encapsulation aal5snap

 !

vc-class atm vclass

  abr 1000 0

 

VOIP

 

dial-type {dtmf | pulse}—tone or pulse dialing
cptone country—set regional tone, ring and cadence
ring frequency {25 | 50}—(FXS only) ring frequency in hertz;
Should match end device
ring number number—(FXO only) maximum number of rings to be detected before answering a call over an FXO voice port
connection plar number—private line auto ring down, auto-dials
remote number
music-threshold decibels (-70 to -30)—specify the threshold for
on-hold music
description string—to include a description of what this voice port
is connected to
comfort-noise—generates background noise(optional, w/ VAD)
num-exp extension extension-string—define how to expand
an extension number into a particular destination pattern
ip precedence {0|1|2|3|4|5|6|7}—gives voice traffic precedence
over other IP traffic

Dial Peer Configuration Example

 

 

dial-peer voice 1 pots
destination-pattern 1001
port 1/0/0

dial-peer voice 2 voip
destination-pattern 1002
session target ipv4:10.18.0.1

 

 

DLSw+ Ethernet Configuration Example

Router A#

dlsw  local-peer peer-id 10.1.1.2

dlsw  remote-peer 0 tcp 10.2.2.1

dlsw  bridge-group 1

!

interface Ethernet 0

bridge-group 1

!

bridge 1 protocol ieee

 

QoS Quality of Service

•Policy Based Routing

•Committed Access Rate

•Weighted Fair Queuing

•Class Based Weithted Fair Queuing

•Priority Queuing

•Custom Queuing

•Frame-relay Traffic Shaping

•Weighted Random Early Detection

 

IP Features

•Network Address Translation (NAT)

•Hot Standby Routing Protocol (HSRP)

•Domain Name Service (DNS)

•Dynamic Host Control Protocol (DHCP)

•Network Time Protocol (NTP)

•HTTP