In case of a connectivity break – the connection switches to the standby path or standby
link ........................................................................................................................................169
F
IGURE
95
– Using S-Ring, RS-Ring and dual-homing, it is possible to build networks resilient
not only to a single link failure but also for one device failing on the network .............................170
F
IGURE
96
– configuring dual-homing ................................................................................................172
F
IGURE
97
– Some valid LACP configurations. ................................................................................176
F
IGURE
98
– an incorrect LACP connection scheme for Magnum 6K family of switches. All
LACP trunk ports must be on the same module and cannot span different modules..................176
F
IGURE
99
– In this figure, even though the connections are from one module to another, this is
still not a valid configuration (for LACP using 4 ports) as the trunk group belongs to two
different VLANs...................................................................................................................177
F
IGURE
100
- In the figure above, there is no common VLAN between the two sets of ports, so
packets from one VLAN to another cannot be forwarded. There should be at least one
VLAN common between the two switches and the LACP port groups. ...................................177
F
IGURE
101
– This configuration is similar to the previous configuration, except there is a common
VLAN (VLAN 1) between the two sets of LACP ports. This is a valid configuration. ........178
F
IGURE
102 – In the architecture above, using RSTP and LACP allows multiple switches to be
configured together in a meshed redundant link architecture. First define the RSTP
configuration on the switches. Then define the LACP ports. Then finally connect the ports
together to form the meshed redundant link topology as shown above..........................................178
F
IGURE
103
– LACP, along with RSTP/STP brings redundancy to the network core or
backbone. Using this reliable core with a dual-homed edge switch brings reliability and
redundancy to the edge of the network.......................................................................................179
F
IGURE
104
– This architecture is not recommended............................................................................180
F
IGURE
105 – Creating a reliable infrastructure using wireless bridges (between two facilities) and
LACP. “A” indicates a Wi-Fi wireless Bridge or other wireless Bridges..................................181
F
IGURE
106 – Configuring LACP....................................................................................................183
F
IGURE
107 – The network for the ‘show lacp’ command listed below..................................................184
F
IGURE
108
– LACP information over a network .............................................................................185
F
IGURE
109 – ToS and DSCP.........................................................................................................187
F
IGURE
110 - IP Precedence ToS Field in an IP Packet Header.........................................................188
F
IGURE
111 - Port weight settings and the meaning of the setting .........................................................190
F
IGURE
112 – QoS configuration and setup........................................................................................193
F
IGURE
113 – IGMP concepts – advantages of using IGMP..............................................................197
F
IGURE
114 – IGMP concepts – Isolating multicast traffic in a network.............................................198
F
IGURE
115
- In a Layer 2 network, an IGMP multicast traffic goes to all the nodes. In the
figure, T1, a surveillance camera, using multicast, will send the traffic to all the nodes - R1
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