Netgear XCM8806 - 8800 SERIES 6-SLOT CHASSIS SWITCH 사용자 설명서
Chapter 11. Virtual Routers
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11.
Virtual Routers
This chapter includes the following sections:
• Overview
Overview
The XCM8800 software supports virtual routers (VRs). This capability allows a single physical
switch to be split into multiple VRs. This feature separates the traffic forwarded by a VR from the
traffic on a different VR.
switch to be split into multiple VRs. This feature separates the traffic forwarded by a VR from the
traffic on a different VR.
Each VR maintains a separate logical forwarding table, which allows the VRs to have
overlapping IP addressing. Because each VR maintains its own separate routing information,
packets arriving on one VR are never switched to another.
overlapping IP addressing. Because each VR maintains its own separate routing information,
packets arriving on one VR are never switched to another.
Note:
VRs should not be connected together through a Layer 2 domain.
Since there is a single MAC address per switch in XCM8800
software, this same MAC address is used for all VRs. If two VRs on
the same switch are connected through a Layer 2 domain, the
intermediate Layer 2 switches learn the same MAC address of the
switch on different ports, and may send traffic into the wrong VR.
software, this same MAC address is used for all VRs. If two VRs on
the same switch are connected through a Layer 2 domain, the
intermediate Layer 2 switches learn the same MAC address of the
switch on different ports, and may send traffic into the wrong VR.
Ports on the switch can either be used exclusively by one VR, or can be shared among two or
more VRs. One reason to configure a port for the exclusive use of a single VR is to be sure that
only packets from that VR egress from that port. One reason to configure a port to be shared by
multiple VRs is to pass traffic from multiple VRs across a shared link.
more VRs. One reason to configure a port for the exclusive use of a single VR is to be sure that
only packets from that VR egress from that port. One reason to configure a port to be shared by
multiple VRs is to pass traffic from multiple VRs across a shared link.
With multiple VRs contained on a single physical switch, some commands in XCM8800 software
now require you to specify to which VR the command applies. For example, when you use the
ping command, you must specify from which VR the ping packets are generated. Many
commands that deal with switch management use the management VR by default. See the
now require you to specify to which VR the command applies. For example, when you use the
ping command, you must specify from which VR the ping packets are generated. Many
commands that deal with switch management use the management VR by default. See the