VSUF-160 is a value-added service card on ME60-X8 X16, it has two sub-slots and can have two SP160s installed. On ME60-X8 Chassis, installing the VSUF-160s in slots 3, 4, 5, and 6 is recommended. On the ME60-X16 Chassis, installing the VSUF-160s in slots 3, 4, 5, 10, 11, 12, 13, and 14 is recommended. ME60-X16 supports a maximum of 15 VSUF-160s/VSUF-160-Es. ME60-X8 can be fully configured. What’s more, VSUF-160 is supported only on the ME60-X8 and ME60-X16 and must work with the 200G SFU.
Appearance of VSUF-160
By default, a VSUF-160 provides a forwarding capability of 40 Gbit/s. To increase the forwarding capability of a VSUF-160, use the following:
A 20G license expands the forwarding capability of a VSUF-160 by 20 Gbit/s. A VSUF-160 supports a maximum of two 20G licenses.
After loading this license for a VSUF-160, run the active nat bandwidth-enhance slot slot-id engine engine-id command in the license view for the new capacity to take effect.
An SP160 provides a forwarding capability of 40 Gbit/s. A VSUF-160 supports a maximum of two SP160s.
To enable a VSUF-160 to provide a forwarding capability of 160 Gbit/s, install two 20G licenses and two SP160s on the VSUF-160.
A VSUF-160 provides the following functions:
Network address translation (NAT) is an important technology used in the transition from IPv4 to IPv6 networks. NAT44 allows an IPv4 address to be translated into another IPv4 address. NAT444 is NAT44 performed twice, once on customer premises equipment (CPE) device and the second time on a carrier-grade NAT (CGN) device. Because of its efficiency, NAT444, also called large scale NAT (LSN), is utilized in situations where NAT is used on carrier networks on a large scale.
Dual-Stack Lite (DS-Lite) is an IPv6 transition technology. DS-Lite enables an IPv4 in an IPv6 tunnel to be established between the CPE and CGN devices. Also, a private IP address can be encapsulated for NAT on the CGN. And, a private IP address can be translated to a public network IPv4 address.
- L2-Aware NAT
L2-Aware NAT is a special NAT technology that translates private network IP addresses and port IDs into public network IP addresses and port IDs. In L2-Aware NAT, user location information (PPP session ID, MAC address, and user VLAN ID), private network IP addresses, and port IDs are translated into public network IP addresses and port IDs.
If you want an ME60 to provide the NAT44, DS-Lite or L2NAT function, install a VSUF-160 on the ME60 and configure the following licenses.
NAT session licenses are classified as 2M NAT session licenses and 16M NAT session licenses. If you want a VSUF-160 to support 10M NAT sessions, configure five 2M NAT session licenses. If you want a VSUF-160 to support more than 16M NAT sessions, use the 16M NAT session license in preference.
- DS-Lite license
One VSUF-160 requires one DS-Lite license. A VSUF-160 can provide the DS-Lite function only after this license is configured.
- L2-Aware NAT license
One VSUF-160 requires one L2-Aware NAT license. A VSUF-160 can provide the L2-Aware NAT function only after this license is configured.