Zte ZXR10 8900E series, Product Description

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ZXR10 8900E series Core Switch Product Description
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The message encapsulation and de-capsulation can be done by changing message MAC
address.
3.2 L3 function
3.2.1 IPv4 route protocol
3.2.1.1 RIP
RIP protocol is based on the vector distance routing algorithm of local network. It
employs UDP packet to switch RIP route information, and the protocol packet to be
transported is encapsulated into UDP packet. The route information in RIP message
includes the number of the nodes on the route, namely, hop number. Route node decides
the route to destination networks according to the hop number. RFC requires that the hop
number is not more than 16, which is applied to internal gateway in small-scale
autonomous system.
ZXR10 8900E RIP has the following functions:

Transmit and receive RIP message according to the protocol, check message
correctness and verify its identification.

Support RIPV1/V2, plain text authentication and MD5 authentication, and route
reallocation.

Route loop generation and route convergence acceleration adopt split-horizon and
trigger updates technology.

Support protocol DEBUG.
3.2.1.2 OSPF
OSPF is the IETF-developed internal gateway protocol (IGP) based on link status and
SPF algorithm. OSPF can converge routing table in a short time, and prevent loop, which
is vital to mesh networks or different LANs connected via several bridges. Each
equipment running OSPF maintains one unified database describing autonomous system
topology structure. The database includes such information as partial status of each
equipment, e.g., available interfaces and neighbors, connected network status and
external route of autonomous system. OSPF uses link status algorithm to calculate the
shortest path from each area to all destinations. When the equipment works or any route
changes, the equipment configured with OSPF diffuses LSA to all equipments in one
area. LSA includes link status and neighbor association information of the equipment.
The information from LSA forms link status database. All equipments in the area use one
specific database to describe topology structure in the area.