Number of I-SIDs Supported for the Number of Configured IS-IS Interfaces and Adjacencies

The number of I-SIDs supported depends on the number of IS-IS interfaces and adjacencies (NNIs) configured.

The following table shows the number of UNI I-SIDs supported per BEB. UNI I-SIDs are used for Layer 2 VSN, Layer 3 VSN, Transparent-UNI, E-Tree, Switched-UNI and S, G for Multicast.

Number of IS-IS interfaces (NNIs)

Product

I-SIDs with vIST configured on the platform

I-SIDs without vIST configured on the platform

4

5320 Series

n/a

500

5420 Series

564

564

5520 Series

4,000

4,000

5720 Series

4,000

4,000

7520 Series

4,000

4,000

7720 Series

4,000

4,000

6

5320 Series

n/a

500

5420 Series

564

564

5520 Series

3,500

4,000

5720 Series

3,500

4,000

7520 Series

4,000

4,000

7720 Series

4,000

4,000

10

5320 Series

n/a

500

5420 Series

564

564

5520 Series

2,900

4,000

5720 Series

2,900

4,000

7520 Series

2,900

4,000

7720 Series

2,900

4,000

20

5320 Series

n/a

500

5420 Series

564

564

5520 Series

2,000

4,000

5720 Series

2,000

4,000

7520 Series

2,000

4,000

7720 Series

2,000

4,000

48

5320 Series

n/a

500

5420 Series

564

564

5520 Series

1,000

2,000

5720 Series

1,000

2,000

7520 Series

1,000

2,000

7720 Series

1,000

2,000

72

5320 Series

n/a

n/a

5420 Series

n/a

n/a

5520 Series

750

1,500

5720 Series

750

1,500

7520 Series

750

1,500

7720 Series

750

1,500

100

5320 Series

n/a

n/a

5420 Series

n/a

n/a

5520 Series

550

1,100

5720 Series

550

1,100

7520 Series

550

1,100

7720 Series

550

1,100

128

5320 Series

n/a

n/a

5420 Series

n/a

n/a

5520 Series

450

900

5720 Series

450

900

7520 Series

450

900

7720 Series

450

900

250

5320 Series

n/a

n/a

5420 Series

n/a

n/a

5520 Series

n/a

n/a

5720 Series

n/a

n/a

7520 Series

n/a

n/a

7720 Series

n/a

n/a