Configuring the Resource Mode of Extended Entry Space
Context
A device maintains many MAC address entries, FIB entries, and ARP entries when processing a large number of services. However, the number of the entries supported by the device is limited. If these entries cannot meet service requirements, the service processing efficiency degrades. A device provides the function that extends entry spaces and allows configuring the resource mode of the extended entry space to extend the MAC address, FIB entry, or ARP entry spaces as required.
Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731S-H, S5732-H, S5731-S, S5731S-S, S6730-S, S6730S-S, S6730-H, S6730S-H, S6720-HI, S6720-EI and S6720S-EI support this configuration.
Procedure
- (Optional) Run display resource-mode configuration
The resource mode configuration of the extended entry space is displayed.
- Run system-view
The system view is displayed.
- Configure the resource mode of the extended entry space.
- On the S5720-EI, run the assign resource-mode { enhanced-mac | enhanced-ipv4 | enhanced-ipv6 } [ slot slot-id | all ] command to configure the resource mode.
- On the S6720-EI and S6720S-EI, run the assign resource-mode { enhanced-mac | enhanced-arp | enhanced-ipv4 | ipv4-ipv6 6:1 | super-arp } [ slot slot-id | all ] command to configure the resource mode.
- On the S6720-HI, run the assign resource-mode { enhanced-mac | enhanced-arp | enhanced-ipv4 | enhanced-ipv6 | limiting-mac | eca | sac } [ slot slot-id | all ] command to configure the resource mode.
- On the S5720-HI, run the assign resource-mode { enhanced-arp | eca } [ slot slot-id | all ] command to configure the resource mode.
- On the S5730-HI, S5731-H, S5731S-H, S5731-S, and S5731S-S, run the assign resource-mode { enhanced-arp | eca | sac } [ slot slot-id | all ] command to configure the resource mode.
- On the S6730-S, S6730S-S, and S5732-H, run the assign resource-mode { enhanced-arp | sac } [ slot slot-id | all ]
- On the S6730-H, and S6730S-H, run the assign resource-mode { enhanced-mac | enhanced-arp | enhanced-fib | sac } [ slot slot-id | all ]
By default, the resource allocation mode of the S5720-EI is enhanced-mac and that of the S5720-HI, S5730-HI, S5731-H, S5731S-H, S5732-H, S5731-S, S5731S-S, S6730-S, S6730S-S, S6730-H, S6730S-H, S6720-HI, S6720-EI, and S6720S-EI is enhanced-arp.
When the resource allocation mode of the following models is changed, the specifications of MAC, FIB, ARP, ND, or multicast entries will be modified.
Table 1 Number of entries supported in different resource allocation modes on the S5720-EI Resource Allocation Mode
MAC
IPv4 FIB
IPv6 FIB (0-64 Bits Mask)
IPv6 FIB (Over 64 Bits Mask)
ARP
ND
Multicast IPv4
Multicast IPv6
Number of NAC Users
enhanced-mac (default)
64K
12K
6K (shared with IPv4 FIB)
1K
16K
8K (shared with ARP)
4000
2000 (shared with Multicast IPv4)
2K
enhanced-ipv4
32K
16K
8K (shared with IPv4 FIB)
0K
16K
8K (shared with ARP)
4000
2000 (shared with Multicast IPv4)
2K
enhanced-ipv6
32K
8K
4K (shared with IPv4 FIB)
2K
16K
8K (shared with ARP)
4000
2000 (shared with Multicast IPv4)
2K
- On the S5720-EI, IPv4 FIB and IPv6 FIB (0-64 bits mask) share hardware resources. The specifications listed in the preceding table indicate the maximum number of FIB entries of a single type. Numbers of the two types of FIB entries cannot reach the maximum value simultaneously.
- On the S5720-EI, ARP and ND share hardware resources. The value listed in the preceding table indicates the maximum number of entries of a single type. Numbers of the two types of entries cannot reach the maximum value simultaneously.
Table 2 Number of entries supported in different resource allocation modes on the S5732-H Resource Allocation Mode
MAC
IPv4 FIB
IPv6 FIB
ARP
ND
Multicast IPv4
Multicast IPv6
Number of NAC Users
enhanced-arp (default)
128K
192K (shared)
80K (shared)
140K (shared)
80K (shared)
64K-1 (shared)
4K
16K
sac
96K
192K (shared)
80K (shared)
96K (shared)
80K (shared)
64K-1 (shared)
4K
16K
On the S5732-H, IPv4 FIB, IPv6 FIB, ARP, ND, and Multicast IPv4 share hardware resources. The specifications listed in the preceding table indicate the maximum number of entries of a single type and cannot reach the maximum value simultaneously.
Table 3 Number of entries supported in different resource allocation modes on the S6720-EI and S6720S-EI Resource Allocation Mode
MAC
IPv4 FIB
IPv6 FIB (0-64 Bits Mask)
IPv6 FIB (Over 64 Bits Mask)
ARP
ND
Multicast IPv4&IPv6
Number of NAC Users
enhanced-arp (default)
160K
12K
6K (shared with IPv4 FIB)
1K
48K
44K (shared with ARP)
4000
2K
enhanced-mac
288K
12K
6K (shared with IPv4 FIB)
1K
16K
8K (shared with ARP)
4000
2K
enhanced-ipv4
32K
256000
128K (shared with IPv4 FIB)
0K
16K
8K (shared with ARP)
4000
2K
ipv4-ipv6 6:1
32K
64K
10K
10K
16K
8K (shared with ARP)
4000
2K
super-arp
96K
12K
6K (shared with IPv4 FIB)
1K
128K
48K (shared with ARP)
4000
2K
- On the S6720-EI and S6720S-EI, ARP and ND share hardware resources. The value listed in the preceding table indicates the maximum number of entries of a single type. Numbers of the two types of entries cannot reach the maximum value simultaneously.
- When the S6720-EI and S6720S-EI work in enhanced-arp, enhanced-mac, enhanced-ipv4, or super-arp mode, IPv4 FIB and IPv6 FIB (0-64 bits mask) share hardware resources. The value listed in the preceding table indicates the maximum number of FIB entries of a single type. Numbers of the two types of FIB entries cannot reach the maximum value simultaneously.
- When the S6720-EI and S6720S-EI work in ipv4-ipv6 6:1 mode, IPv6 FIB (0-64 bits mask) and IPv6 FIB (over 64 bits mask) share hardware resources. The value listed in the preceding table indicates the maximum number of FIB entries of a single type. Numbers of the two types of FIB entries cannot reach the maximum value simultaneously.
- On the S6720-EI and S6720S-EI, if the assign resource-mode command sets the resource allocation mode to enhanced-ipv4 or ipv4-ipv6 6:1, and the ipv4 destination-unreachable drop or ipv6 destination-unreachable drop command has been executed, the function that dropping the packets that do not match routing entries does not take effect.
- On the S6720-EI and S6720S-EI, redirection to a low-priority next hop is not supported in enhanced-ipv4 or ipv4-ipv6 6:1 resource allocation mode.
- On the S6720-EI and S6720S-EI, MPLS and Layer 3 VXLAN Gateway are not supported in super-arp resource allocation mode.
Table 4 Number of entries supported in different resource allocation modes on the S6720-HI Resource Allocation Mode
MAC
IPv4 FIB
IPv6 FIB
ARP
ND
Multicast IPv4
Multicast IPv6
Number of NAC Users
enhanced-arp (default)
64K
55K (shared)
22K (shared)
55K (shared )
22K (shared )
32K-1 (shared )
2K
10000
enhanced-mac
128K
16K
8K
16K (shared with FIBv4)
8K (shared with FIBv6)
4K
4K
8K
enhanced-ipv4
16K
128K
4K
16K (shared with FIBv4)
4K (shared with FIBv6)
4K
4K
8K
enhanced-ipv6
16K
8K
32K
8K (shared with FIBv4)
32K (shared with FIBv6)
4K
4K
8K
limiting-mac
256000
512 (shared with FIBv6/ND/ARP)
32 (shared with FIBv4/ND/ARP)
512 (shared with FIBv4/FIBv6/ND)
32 (shared with FIBv4/FIBv6/ARP)
256
32
0
eca and sac
32K
32K (Min. 8K, shared with others)
11K (Min. 2K, shared with others)
32K (shared with FIBv4)
11K (shared with FIBv6)
16K-1 (Min. 2K, shared with others)
2K
8K
On the S6720-HI, the value listed in the preceding table indicates the maximum number of entries of a single type. Numbers of the two types of entries cannot reach the maximum value simultaneously. For example, ARP and FIBv4 share hardware resources, while ND and FIBv6 share hardware resources.
After the resource mode is set to limiting-mac on the S6720-HI, the S6720-HI cannot function as an authentication point for user access.
On the S6720-HI, the specifications in eca and sac mode are the same.
Table 5 Number of entries supported in different resource allocation modes on the S6730-H, and S6730S-H Resource Allocation Mode
MAC
IPv4 FIB
IPv6 FIB
ARP
ND
Multicast IPv4
Multicast IPv6
Number of NAC Users
enhanced-arp (default)
128K
192K (shared)
80K (shared)
140K (shared)
80K (shared)
64K-1 (shared)
4K
10000
enhanced-mac
384K
32K
8K
32K (shared with FIBv4)
8K (shared with FIBv6)
4K
4K
8K
enhanced-fib
32K
256K (shared)
80K (shared)
128K (shared)
80K (shared)
4K
4K
8K
sac
96K
192K (shared)
80K (shared)
96K (shared)
80K (shared)
64K-1 (shared)
4K
8K
On the S6730-H, and S6730S-H, the value listed in the preceding table indicates the maximum number of entries of a single type. Numbers of the two types of entries cannot reach the maximum value simultaneously. For example, ARP and FIBv4 share hardware resources, while ND and FIBv6 share hardware resources.