Cisco WS-X6708-10G-3CXL= - 10 Gigabit Ethernet Module Manual de usuario descargar pdf (Pagina 48)

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Channel group 10 dual-active detect capability w/nbrs

Dual-Active trusted group: No

Dual-Active Partner Partner Partner

Port Detect Capable Name Port Version

Gi1/8/1 No SAL0802SHG 5/2 N/A

Gi2/8/1 No SAL0802SHG 5/1 N/A

Channel group 20 dual-active detect capability w/nbrs

Dual-Active trusted group: Yes

Dual-Active Partner Partner Partner

Port Detect Capable Name Port Version

Te1/1/1 Yes vs-access-2 Te5/1 1.1

Te2/1/1 Yes vs-access-2 Te5/2 1.1

Layer 3 BFD

If no Enhanced PAgP neighbors are available to assist in dual-active detection, then another method is required to

perform this function; use of a dedicated Layer 3 direct link heartbeat mechanism between the virtual switches is an

inexpensive way to determine whether or not a dual-active scenario has occurred (Figure 36).

Figure 36. Dual-Active Detection Using IP-BFD

Bidirectional Forwarding Detection (BFD) assists in the fast detection of a failed VSL, bringing in natively the benefits

that BFD offers, such as subsecond timers and pseudo-preemption. To take advantage of this feature, you must first

configure BFD on the selected interfaces that will be participating in IP-BFD dual-active detection, noting that these

interfaces must be directly connected to each other:

vss#conf t

Enter configuration commands, one per line. End with CNTL/Z.

vss(config)#int gig 1/5/1

vss(config-if)#ip address 10.1.1.1 255.255.255.0

vss(config-if)#bfd interval 100 min_rx 100 multiplier 50

vss(config-if)#no shutdown

vss(config-if)#int gig 2/5/1

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Cisco WS-X6708-10G-3CXL= - 10 Gigabit Ethernet Module Manual de usuario Pagina 48