L3 redundancy.pdf - the Netgroup at Politecnico di Torino

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HSRP packets over the LANH1DG: 2.2.2.3H2DG: 2.2.2.3H3DG: 2.2.2.3R2 (active)IP: 2.2.2.2MAC: 00:00:00:22:22:22HSRP Group: 1V-IP: 2.2.2.3V-MAC: 00:00:0C:07:AC:01ETH.SRC: 00:00:0C:07:AC:01ETH.DST: 01:00:5E:00:00:02IP.SRC: 2.2.2.2IP.DST: 224.0.0.2ETH.SRC: 00:00:00:11:11:11ETH.DST: 01-00-5E-00-00-02IP.SRC: 2.2.2.1IP.DST: 224.0.0.2R1 (standby)IP: 2.2.2.1MAC: 00:00:00:11:11:11HSRP Group: 1UDP.SPORT: 1985UDP.DPORT: 1985UDP.SPORT: 1985UDP.DPORT: 1985HSRP HELLO (HSRP Group 1)HSRP HELLO (HSRP Group 1)Multicast MAC address(derived from 224.0.0.2)Internet21
HSRP: fault reactionH1DG: 2.2.2.3H2DG: 2.2.2.3H3DG: 2.2.2.3Data to InternetIP.dst: IP_remoteMAC.dst: 00:00:0C:07:AC:01Data to InternetIP.dst: IP_remoteMAC.dst: 00:00:0C:07:AC:01R2 (active)IP: 2.2.2.2MAC: 00:00:00:22:22:22HSRP Group: 1Virtual IP: 2.2.2.3Virtual MAC: 00:00:0C:07:AC:01“Hello” packetsInternetR1 (standby)IP: 2.2.2.1MAC: 00:00:00:11:11:11HSRP Group: 1Virtual IP: 2.2.2.3Virtual MAC: 00:00:0C:07:AC:0122
Page 1 and 2: Redundancy and load balancing at L3
Page 3 and 4: Default gateway redundancy (2)• O
Page 5 and 6: 昨年開催の様子© 吉
Page 7 and 8: HSRP: working operations (1)• Rou
Page 10: HSRP: working operations (4)• Kee
Page 13 and 14: HSRP Encapsulation• HSRP packets
Page 15 and 16: HSRP header: “state” field (1)
Page 17 and 18: HSRP header: “Hello time” and
Page 19: HSRP header: Authentication and Vir
Page 23 and 24: HSRP and interfaces (2)• HSRP can
Page 25 and 26: HSRP and VLANs• Each VLAN is a se
Page 27 and 28: HSRP and ARP caches• A gratuitous
Page 29 and 30: HSRP and load sharing (1)H1DG: 2.2.
Page 31 and 32: HSRP and load sharing (3)• Proble
Page 33 and 34: HSRP: Preemption capability• Para
Page 36 and 37: HSRP: “track” function (2)•
Page 38 and 39: VRRP overview (1)• A “smart”
Page 40 and 41: VRRP overview (3)• Major (?) diff
Page 42 and 43: VRRP: packet format (2)• IP heade
Page 44 and 45: VRRP: packet format (4)• Count IP
Page 46 and 47: VRRP: Virtual MAC Address• Well k
Page 48 and 49: HSRP/VRRP: convergence• HSRP: abo
Page 50 and 51: HSRP/VRRP on real LANs: L2 resilien
Page 52 and 53: HSRP/VRRP on real LANs: flooding (2
Page 54 and 55: HSRP/VRRP on real LANs: flooding (4
Page 56 and 57: HSRP/VRRP on unidirectional links (
Page 58 and 59: GLBP• Enhancement (and replacemen
Page 60 and 61: GLBP Functions• Active Virtual Ga
Page 62 and 63: Load Balancing Algorithm• Four po

L3 redundancy.pdf - the Netgroup at Politecnico di Torino

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