Zte ZXR10 8900E series, Описание продукта

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ZXR10 8900E series Core Switch Product Description
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mirroring group. It supports port-based mirroring as well as flow-based and ACL-based
one-to-many, many-to-one, and many-to-many mirroring.
ZXR10 8900E can perform port mirroring in the same equipment, and remote port
mirroring in RSPAN and ERSPAN. For RSPAN, mirroring port and mirrored port may be
in different switches. In some cases, monitoring equipment and switch are physically far
away from each other, so a remote span technology is needed for monitoring. RSPAN
monitoring principle is: set RSPAN source port at source switch, configure remote VLAN,
and send it out via Reflector port to reach destination switch via intermediate switch;
configure destination port at destination switch to reach remote monitoring destination.
ERSPAN (Encapsulated Remote SPAN), another remote port mirroring technology,
adopts GRE tunnel to encapsulate service stream of source port and transport it to
remote destination switch port. In the mirroring mode, data stream can fulfill the mirroring
across L3 interface, and ordinary SPAN and RSPAN can only fulfill the mirroring across
L2 network.
3.1.1.3 Port security and protection
ZXR10 8900E supports port traffic control, broadcast storm suppression, whether to
allow jumbo frame to pass, and rate negotiation to effectively control port data traffic,
avoiding network blocking and ensuring normal operation of network services.
ZXR10 8900E can analyze line diagnosis, check whether line and line connection are
normal, and accurately locate line fault.
ZXR10 8900E can set some or all port to loop check, and not check by default. The
function can check user or switch loop of port connection to process the port so as to
avoid switch broadcast storm and limit the effect to a certain port.
ZXR10 8900E supports VLAN-based loop check. The loop check can be performed in
PVID VLAN or user-specified VLAN. One port supports the loop check of at most 8
VLANs at the same time.
The implementation principle of port loop check is that the port sends L2 multicast every
15 seconds; if there is a loop at a port, L2 multicast packet is returned to the port, thus it
can be judged that the loop is available.
3.1.2 VLAN and relative features
VLAN protocol, a basic protocol of L2 switching equipment, enables the administrator to
divide one physical LAN into several VLAN. Each VLAN has one VLAN ID which uniquely
identifies the VLAN. Several VLANs share the switching equipment and links of physical
LAN.