Layer 2

Table 1. Layer 2 Maximums

Attribute

Maximum number supported

LACP aggregators

192 (up to 224 with channelization)

Layer 2 VSNs

4,000

MAC table size

256,000

MAC table size (with Switch Clustering)

128,000

Microsoft NLB cluster IP interfaces

200

MLT groups

192 (up to 224 with channelization)

MSTP instances

64

Port-based VLANs

4,059

Ports per LACP aggregator

8

Ports per MLT group

8

RSTP instances

1

SLPP VLANs

500

Switched UNI I-SIDs per switch (L2 only)

6000

Switched UNI endpoints per interface (same I-SID)

1

Switched UNI endpoints per interface (different I-SIDs)

4000

Transparent Port UNI services per switch (port mapped to I-SID)

192

VLACP interfaces

128