Route Scaling

The following table provides information on IPv4 and IPv6 route scaling. The route table is a shared hardware resource where IPv4 routes consume one entry and IPv6 routes with a prefix length less than 64 consume two entries.

The route scaling does not depend on the protocol itself, but rather the general system limitation in the following configuration modes:

Table 1. VSP 4450 Series, VSP 4900 Series, VSP 7200 Series, and VSP 8000 Series

URPF mode

IPv6 mode

VSP 4450 Series

VSP 7200 Series, VSP 4900 Series, and VSP 8000 Series

IPv4

IPv6

IPv4

IPv6

Prefix less than 64

Prefix greater than 64

Prefix less than 64

Prefix greater than 64

No

No

15,744

7,887

256

15,488

7,744

n/a

No

Yes

n/a

n/a

n/a

7,488

3,744

2,000

Yes

No

7,744

3,872

256

7,488

3,744

n/a

Yes

Yes

n/a

n/a

n/a

3,488

1,744

2,000

Note:

The stated numbers in the preceding rows are one-dimensional where the given number implies that only routes for that address family or type are present. For a given row in the table, the maximum scaling number is ‘x‘ IPv4 routes OR ‘y‘ ipv6 <= 64 routes OR ‘z‘ ipv6 >64 routes (not a combination of all).

Table 2. VSP 7400 Series

URPF mode

IPv6 mode

VSP 7400 Series

IPv4

IPv6

Prefix less than 64

Prefix greater than 64

No

No

15,000

7,000

n/a

No

Yes

7,000

3,500

2,000

Yes

No

7,000

3,500

n/a

Yes

Yes

3,000

1,500

1,000

Note:

The stated numbers in the preceding rows are one-dimensional where the given number implies that only routes for that address family or type are present. For a given row in the table, the maximum scaling number is ‘x‘ IPv4 routes OR ‘y‘ ipv6 <= 64 routes OR ‘z‘ ipv6 >64 routes (not a combination of all).

Table 3. XA1400 Series

IPv4 BGP routes (control plane only)

15,488

IPv4 OSFP routes

15,488

IPv4 RIP routes

15,488

IPv4 routes

15,488

IPv4 SPB Shortcut routes

15,488