Cisco Cisco Nexus 5010 Switch Guida Alla Progettazione

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Type-1 Misconfiguration: Global and Interface Specific

In a vPC deployment, ports can form a vPC only if the consistency rules are met. There are two types of

consistency rules: global rules and interface-specific rules.

●

Global inconsistencies: A Type-1 global inconsistency prevents all vPCs from forming (but does not affect

non-vPC ports).

●

Interface-specific inconsistencies: Type-1 interface-specific inconsistencies affect only the interface itself.

Global inconsistencies are as follows (Figure 8):

tc-nexus5k01# show vpc consistency-parameters global

Legend:

Type 1: vPC will be suspended in case of mismatch

Name Type Local Value Peer Value

------------- ---- ---------------------- -----------------------

QoS 1 ([], [3], [], [], [], ([], [3], [], [], [],

[]) [])

Network QoS (MTU) 1 (9216, 2240, 0, 0, 0, (9216, 2240, 0, 0, 0,

0) 0)

Network Qos (Pause) 1 (F, T, F, F, F, F) (F, T, F, F, F, F)

Input Queuing (Bandwidth) 1 (50, 50, 0, 0, 0, 0) (50, 50, 0, 0, 0, 0)

Input Queuing (Absolute 1 (F, F, F, F, F, F) (F, F, F, F, F, F)

Priority)

Output Queuing (Bandwidth) 1 (50, 50, 0, 0, 0, 0) (50, 50, 0, 0, 0, 0)

Output Queuing (Absolute 1 (F, F, F, F, F, F) (F, F, F, F, F, F)

Priority)

STP Mode 1 Rapid-PVST Rapid-PVST

STP Disabled 1 None None

STP MST Region Name 1 dc1 dc1

STP MST Region Revision 1 3 3

STP MST Region Instance to 1

VLAN Mapping

STP Loopguard 1 Disabled Disabled

STP Bridge Assurance 1 Enabled Enabled

STP Port Type, Edge 1 Normal, Disabled, Normal, Disabled,

BPDUFilter, Edge BPDUGuard Disabled Disabled

STP MST Simulate PVST 1 Enabled Enabled

Allowed VLANs - 1,10-14,21-24,30,50,60 1,10-14,21-24,30,50,60

Thus, it is advisable to preprovision VLAN mappings on MST as is usual in existing MST deployments.

Remember that vPC inconsistencies affect only vPC member ports, not the regular switch ports.