576
Configuring VLANs
Configuring the PVID for an interface is useful when untagged and tagged
packets will be sent and received on that port and a device connected to the
interface does not support VLAN tagging.
GVRP
The GARP VLAN Registration Protocol (GVRP) helps to dynamically
manage VLAN memberships on trunk ports. When GARP is enabled,
switches can dynamically register (and de-register) VLAN membership
information with other switches attached to the same segment.
Information about the active VLANs is propagated across all networking
switches in the bridged LAN that support GVRP. You can configure ports to
forbid dynamic VLAN assignment through GVRP.
The operation of GVRP relies upon the services provided by the Generic
Attribute Registration Protocol (GARP). GVRP can create up to 1024 VLANs.
For information about GARP timers, see "What Are GARP and GMRP?" on
page 708.
Double-VLAN Tagging
For trunk ports, which are ports that connect one switch to another switch,
the PowerConnect 7000 Series switches support double-VLAN tagging. This
feature allows service providers to create Virtual Metropolitan Area Networks
(VMANs). With double-VLAN tagging, service providers can pass VLAN
traffic from one customer domain to another through a metro core in a
simple and cost-effective manner. By using an additional tag on the traffic,
the switch can differentiate between customers in the MAN while preserving
an individual customer’s VLAN identification when the traffic enters the
customer’s 802.1Q domain.
With the introduction of this second tag, customers are no longer required to
divide the 4-byte VLAN ID space to send traffic on a Ethernet-based MAN.
In short, every frame that is transmitted from an interface has a double-VLAN
tag attached, while every packet that is received from an interface has a tag
removed (if one or more tags are present).
In Figure 21-2, two customers share the same metro core. The service
provider assigns each customer a unique ID so that the provider can
distinguish between the two customers and apply different rules to each.
When the configurable EtherType is assigned to something different than the
Содержание PowerConnect 7024
Страница 134: ...134 Setting Basic Network Information ...
Страница 290: ...290 Managing General System Settings Figure 11 14 SNTP Servers Table ...
Страница 348: ...348 Configuring SNMP ...
Страница 430: ...430 Monitoring Switch Traffic ...
Страница 444: ...444 Configuring iSCSI Optimization ...
Страница 521: ...Configuring 802 1X and Port Based Security 521 Figure 19 8 Configure Port Security Settings 5 Click Apply ...
Страница 538: ...538 Configuring 802 1X and Port Based Security ...
Страница 585: ...Configuring VLANs 585 Figure 21 5 Add Ports to VLAN 4 Click Apply 5 Verify that the ports have been added to the VLAN ...
Страница 594: ...594 Configuring VLANs Figure 21 16 GVRP Port Parameters Table ...
Страница 600: ...600 Configuring VLANs Figure 21 23 Double VLAN Port Parameter Table ...
Страница 658: ...658 Configuring the Spanning Tree Protocol ...
Страница 693: ...Configuring Port Based Traffic Control 693 Figure 24 3 Storm Control 5 Click Apply ...
Страница 780: ...780 Configuring Connectivity Fault Management ...
Страница 804: ...804 Snooping and Inspecting Traffic Figure 27 17 DAI Interface Configuration Summary ...
Страница 818: ...818 Snooping and Inspecting Traffic ...
Страница 836: ...836 Configuring Link Aggregation ...
Страница 882: ...882 Configuring DHCP Server Settings ...
Страница 916: ...916 Configuring L2 and L3 Relay Features Figure 33 3 DHCP Relay Interface Summary ...
Страница 924: ...924 Configuring L2 and L3 Relay Features Figure 33 12 IP Helper Statistics ...
Страница 930: ...930 Configuring L2 and L3 Relay Features ...
Страница 1004: ...1004 Configuring OSPF and OSPFv3 ...
Страница 1044: ...1044 Configuring VRRP ...
Страница 1057: ...Configuring IPv6 Routing 1057 Figure 37 9 IPv6 Route Preferences ...
Страница 1064: ...1064 Configuring IPv6 Routing ...
Страница 1084: ...1084 Configuring DHCPv6 Server and Relay Settings ...
Страница 1091: ...Configuring Differentiated Services 1091 Figure 39 5 DiffServ Class Criteria ...
Страница 1114: ...1114 Configuring Differentiated Services ...
Страница 1130: ...1130 Configuring Class of Service ...
Страница 1136: ...1136 Configuring Auto VoIP ...
Страница 1216: ...1216 Managing IPv4 and IPv6 Multicast ...