CCNA 2 - Capitulo 3.1

CCNA 2 - Capitulo 3.1

1. VLAN (VIRTUAL LANs)

   • TRUNK VLAN
     • IDENTIFY VLAN
     • POINT-TO-POINT MORE VLAN
       • CARRIES MODE THAN VLAN
     • TAGGED TRAFFIC
     • DOES NOT SPECIFIC VLAN
     • NETWORK DEVICE TO OTHER NETWORK DEVICE OR SERVER EQUIPPED 802.1Q
     • IS A LAYER 2 LINK BETWEEN TWO SWITCHES
       • PROPAGATE TRAFFIC BETWEEN SWITCHES
       • CARRIES TRAFFIC FOR ALL VLANs
       • ALLOW VLAN TRAFFIC TO PROPAGATE BETWEEN SWITCHES
     • EXTENDS VLAN ACROSS ENTIRE NETWORK
     • CONDUIT FOR MULTIPLE VLANs BETWEEN
       • OR NETWORK DEVICE AND SERVER , ACCESS POINTs
       • SWITCHES , ROUTES , FIREWALs
   • DTP - DYNAMIC TRUNKING PROTOCOL
     • AUTOMATICALLY NEGOTIATE TRUNK NEIGHBORING DEVICE
     • CISCO PROPRIETARY PROTOCOL FOR SWITCHES
     • ENABLE TRUNKING FROM A CISCO SWITCH TO OTHER DEVICE CISCO THAT DOES NOT SUPPORT DTP
       • S1(CONFIG-IF)#SWITCHPORT MODE TRUNK
       • S1(CONFIG-IF)#SWITCHPORT NO NEGOTIATE
         • INTERFACE BECOME A TRUNK . BUT IT WILL NOT GENERATE DTP FRAMES
         • RE ENABLE DYNAMIC TRUNKING PROTOCOL ?
           • SWITCHPORT MODE DYNAMIC AUTO
         • STOP DTP NEGOTIATION
     • SPEED UP THE CONFIGURATION PROCESS
     • CAUTION : SWITCHES OTHER VENDORS DO NOT SUPPORT DTP MUST BE DISABLE
     • MANAGES TRUNK NEGOTIATION
       • OPERATES ON A POINT TO POINT BETWEEN NETWORK DEVICES
       • PORT ON THE NEIGHBOR SWITCH IS CONFIGURED IN A TRUNK MODE THAT SUPPORT DTP
     • NEGOTIATE INTERFACE MODES
       • SWITCHPORT MODE
         • MODE ACCESS
           • PUTS THE INTERFACE INTO PERMANENTE NONTRUNK
           • NEGOTIATES TO CONVERT
             • NONTRUNK LINK
           • OPTIONAL
           • WHEN USED, DISABLES DTP TRUNK NEGOTIATION AND
             • FORCES THE PORT TO OPERATE ONLY AS AN ACCESS PORT.
         • DYNAMIC AUTO
           • INTERFACE BECOMES A TRUNK INTERFACE
             • NEIGHBORING INTERFACE IS SET TRUNK DESIRABLE
           • MAKES THE INTERFACE ABLE TO CONVERT THE LINK TO
             • TRUNK
             • DESIRABLE
           • DEFAULT SWITCHPORT
         • DYNAMIC DESIRABLE
           • ACTIVELY CONVERT ACTIVELY
             • THE LINK TO A TRUNK IF NEIGHBORING INTERFACE IS
               • DYNAMIC AUTO
               • TRUNK
               • DESIRABLE
         • TRUNK
           • INTERFACE BECOMES A TRUNK INTERFACE
             • EVEN IF THE NEIGHBORING INTERFACE IS NOT A TRUNK INTERFACE.
           • PUTS THE INTERFACE INTO
             • PERMANENT TRUNK MODE
         • NONEGOTIATE
           • MANUAL
           • DISABLE DTP
   • VLAN CONFIGURATION
     • RANGE VLANS
       • 0 A 4095
       • NORMAL RANGE -
         • LEGACY NETWORK (TOKEN RING AND FDDI)
           • 1002-1005
         • SMALL ANS MEDIUM SIZED BUSINNES AND ENTERPRISE
           • 1-1005
         • IDs 1 AND 1002 - 1005 AUTOMATICALLY CREATED AND CANNOT BE REMOVED
         • STORED IN FLASH MEMORY
           • HOLDS VLAN DATABASE (VLAN.DAT )
         • DOES NOT REQUIRE THE COPY RUNNING-CONFIG STARTUP-CONFIG
       • EXNTENDED RANGE
         • SERVICE PROVIDERS AND GLOBAL ENTERPRISES
           • 1006 - 4094
         • STORED RUNNING CONFIG
         • FEWER VLAN FEATURES
         • REQUIRES VTP TRANSPARENT MODE
     • CAUTION BEFORE DELETING A VLAN
       • REASSIGN ALL MEMBER PORT TO A DIFFERENT VLAN FIRST
         • ANY PORT THAT ARE NOT MOVED TO AN ACTIVE VLAN
           • UNABLE TO COMMUNICATE WITH OTHER HOSTS AFTER THA VLAN IS DELETED
             • PORT BECOMES INACTIVE AND NOT VIEW IN #SHOW VLAN BRIEF

2. NETWORK WITHOUT VLAN

   • FORWARDS ALL PORTS EXPECT WHERE WAS RECEIVED