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:
URPF check mode - Enable this boot configuration flag to support Unicast Reverse Path Forwarding check mode.
IPv6 mode - Enable this boot configuration flag to support IPv6 routes with prefix-lengths greater than 64 bits. When the IPv6-mode is enabled, the maximum number of IPv4 routing table entries decreases. This flag does not apply to all hardware platforms.
Note
Only 5320-48P-8XE and 5320-48T-8XE support URPF mode.
URPF mode |
IPv6 mode |
5320 Series |
||
---|---|---|---|---|
IPv4 |
IPv6 (prefix less than 64) |
IPv6 (prefix greater than 64) |
||
No |
No |
48-port models: 12K 16- and 24-port models: 8K |
48-port models: 6K 16- and 24-port models: 4K |
n/a |
No |
Yes |
48-port models: 6K 16- and 24-port models:4K |
48-port models: 2K 16- and 24-port models: 2K |
48-port models: 1.5K 16- and 24-port models: 1K |
Yes |
No |
48-port models: 6K |
48-port models: 2K |
n/a |
Yes |
Yes |
48-port models: 3K |
48-port models: 1K |
48-port models: 750 |
Note:
The total number of routes include local routes. 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 (not a combination of both). |
URPF mode |
IPv6 mode |
5420 Series |
||
---|---|---|---|---|
IPv4 |
IPv6 (prefix less than 64) |
IPv6 (prefix greater than 64) |
||
No |
No |
12K |
6K |
n/a |
No |
Yes |
6K |
2K |
1,500 |
Yes |
No |
6K |
3K |
n/a |
Yes |
Yes |
3K |
1K |
750 |
Note:
The total number of routes include local routes. 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 (not a combination of both). |
URPF mode |
IPv6 mode |
5520 Series |
||
---|---|---|---|---|
IPv4 |
IPv6 (prefix less than 64) |
IPv6 (prefix greater than 64) |
||
No |
No |
16K |
8K |
n/a |
No |
Yes |
8K |
4K |
2K |
Yes |
No |
8K |
4K |
n/a |
Yes |
Yes |
4K |
2K |
1K |
Note:
The total number of routes include local routes. 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 (not a combination of both). |
URPF mode |
IPv6 mode |
5720 Series |
||
---|---|---|---|---|
IPv4 |
IPv6 (prefix less than 64) |
IPv6 (prefix greater than 64) |
||
No |
No |
5720MW Series models: 16K 5720MXW Series models: 24K |
5720MW Series models: 8K 5720MXW Series models: 12K |
n/a |
No |
Yes |
5720MW Series models: 8K 5720MXW Series models: 12K |
5720MW Series models: 4K 5720MXW Series models: 6K |
5720MW Series models: 2K 5720MXW Series models: 3K |
Yes |
No |
5720MW Series models: 8K 5720MXW Series models: 12K |
5720MW Series models: 4K 5720MXW Series models: 6K |
n/a |
Yes |
Yes |
5720MW Series models: 4K 5720MXW Series models: 6K |
5720MW Series models: 2K 5720MXW Series models: 3K |
5720MW Series models: 1K 5720MXW Series models: 1.5K |
Note:
The total number of routes include local routes. 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 (not a combination of both). |
URPF mode |
IPv6 mode |
7520 Series |
||
---|---|---|---|---|
IPv4 |
IPv6 (prefix less than 64) |
IPv6 (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 total number of routes include local routes. 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 (not a combination of both). |
URPF mode |
IPv6 mode |
7520 Series |
||
---|---|---|---|---|
IPv4 |
IPv6 (prefix less than 64) |
IPv6 (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 total number of routes include local routes. 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 (not a combination of both). |