CCNA 2 - Capitulo 6

CCNA 2 - Capitulo 6

1. ETHERCHANNEL

   • ETHERCHANNEL OPRATION
     • WILL NOT BE BLOCKED BY STP
       • STP TREATS THE ETHERCHANNEL AS A SINGLE PORT
     • IMPLEMENTATION RESTRICTIONS
       • CANNOT BE MIXED
         • INTERFACE TYPES
           • FASTETHERNET AND GIGABIT ETHERNET
         • PORT CONFIGURATION
           • DUPLEX
             • SPEED 1000 SPEED 1000
           • SPEED
             • FULL - FULL
           • MODE PORT
             • TRUNK TRUNK
           • MUS BE CONSISTENT ON BOTH DEVICES
             • SAME INFORMATION VLAN
       • EACH ETHERCHANNEL CAN CONSIST
         • EIGHT (8) COMPATIBLY CONFIGURED ETHERNET PORTS
           • FAST ETHERCHANNEL
             • 800MBPS
           • GIGABT ETHERCHANNEL
             • 8GBPS
         • NOTE : CISCO 2960 LAYER 2 SUPPORT SIX ETHECHANNELS
       • CAUTION : CONFIGURATION APPLIED TO THE PORT CHANNEL AFFECTS ALL PHYSICAL INTERFACES
     • AUTONEGOTIATION PROTOCOLS
       • PROTOCOLS THAT ALLOW SIMILAR PORTS TO FORM A LOGICAL CHANNEL
         • CAN ALSO POSSIBLE TO CONFIGURE A STATIC OR UNCONDITIONAL WITHOUT PAgP OR LACP
       • TWO PROTOCOLS
         • PORT AGGREGATION PROTOCOL (PAgP)
           • CISCO PRIPRIETARY
           • PACKETS ARE SENT EVERY
             • 30 SECONDS
           • MODE
             • ON
               • FORCES INTERFACE TO CHANEL
                 • WITHOUT PAgP
               • NOT EXCHANGE PAgP PACKETS
               • WORK ONLY IF THE OTHER SIDE IS ALSO SET TO ON
             • DESIRABLE
               • ACTIVE NEGOTIATING STATE PORT
                 • INTERFACE INITIATES NEGOTIATIONS
               • SENDING PAgP PACKETS
             • AUTO
               • PASSIVE NEGOTIAGING STATE
               • INTERFACE RESPONDS TO PAgP PACKETS
                 • RECEIVES BUT DOES INITIATE PAGP NEGOTIATE
           • CHECKS CONFIGURATION CONSISTENCY AND MANAGES LINK ADDITIONS AND FAILURES BETWEEN SWITCHS
         • LINK AGGREGATION CONTROL PROTOCOL (LACP)
           • STANDARD IEEE 802.3AD
           • MODE
             • ON
               • DO NOT EXCHANGE LACP PACKETS
               • FORCES THE INTEFACE TO CHANNEL
                 • WITHOUT LACP
             • LACP ACTIVE
               • ACTIVE NOTIATING STATE
               • SENDING LACP PACKETS
             • LACP PASSIVE
               • RECEIVES BUT DOES
                 • NOT INITIATE LACP
               • PASSIVE NEGOTIAGING STATE
           • ALLOWS EIGHT ACTIVE LINKS AND ALSO EIGHT STANDBY LINKS
     • PROVIDE FAULT TOLEREANCE
     • ADVANTAGE IMPLENTATION
       • FAULT TOLERANCE
         • LOOS OF ONE PHYSICAL LINK DOES NOT CREATE A CHANGE IN THE TOPOLOGY
       • LOAD SHARING
         • LINKS PART ETHERCHANNEL
       • INCREASED BANDWIDTH
       • REDUNDANCY BETWEEN SWITHES , ROUTERS AND SERVERS
       • CONFIGURATION RASKS CAN BE DONE
         • INTERFACE INSTEAD INDIVIDUAL PORT LOGICAL
       • LOAD BALANCING
         • LINKS PART ETHERCHANNEL
         • SOURCE IP/MAC & DESTINATION IP/MAC
     • CAN BE CONFIGURED ACCESS , TRUNK MODE OR ROUTED PORT
     • LINK AGGRAGATION
       • IS A TECHNOLOGY THAT GROUPS MULTIPLE PHYSICAL LINKS INTO
         • A SINGLE LOGICAL LINK BETWEEN NETWORK DEVICES.
       • WHAT IS IT?
         • AGGREGATE LINKS BETWEEN DEVICES
       • VIRTUAL INTERFACE IS CALLED A PORT CHANNEL
       • ETHERCHANNEL IS ADDED TO THE SPANNING TREEE AS A SINGLE PORT