HP 5500 Ei 5500 Si Switch Series Configuration Guide

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•  If you want to restore the default settings of the ti mers, restore the Hold timer first, followed by the 
Join, Leave, and LeaveAll timers. 
Table 20  Dependencies of the GARP timers 
Timer Lower limit  U
pper limit 
Hold  10 centiseconds  No greater than half of the Join timer 
Join  No less than twice the Hold timer Less than half of the Leave timer 
Leave  Greater than twice the Join timer Less than the LeaveAll timer 
LeaveAll  Greater than the Leave timer  32,765 centiseconds 
 
 NOTE: 
To...

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•  Device A and Device B are connected through their ports GigabitEthernet 1/0/1. 
•   Enable GVRP and configure the normal registration  mode on ports to enable the registration and 
deregistration of dynamic and static VLAN information between the two devices.  
Figure 54  Network diagram 
 
 
Configuration procedure 
1.  Configure Device A: 
# Enable GVRP globally.  
 system-view 
[DeviceA] gvrp 
# Configure port GigabitEthernet 1/0/1 as a  trunk port, and assign it to all VLANs.  
[DeviceA]...

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  1(default),2-3 
According to the output, information about VLAN 1, static VLAN information of VLAN 2 on the 
local device, and dynamic VLAN information of VLAN 3 on Device B are all registered through 
GVRP. 
# Display the local VLAN information that GVRP  maintains on port GigabitEthernet 1/0/1 of 
Device B. 
[DeviceB] display gvrp local-vlan interface gigabitethernet 1/0/1 
 Following VLANs exist in GVRP local database: 
  1(default),2-3 
According to the output, information about VLAN 1,...

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[DeviceB] gvrp 
# Configure port GigabitEthernet 1/0/1 as a trunk port, and assign it to all VLANs.  
[DeviceB] interface gigabitethernet 1/0/1 
[DeviceB-GigabitEthernet1/0/1] port link-type trunk 
[DeviceB-GigabitEthernet1/0/1] port trunk permit vlan all 
# Enable GVRP on GigabitEthernet 1/0/1, and set  the GVRP registration mode to fixed on the 
port.  
[DeviceB-GigabitEthernet1/0/1] gvrp 
[DeviceB-GigabitEthernet1/0/1] gvrp registration fixed 
[DeviceB-GigabitEthernet1/0/1] quit 
# Create VLAN 3...

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Configuration procedure  
1. Configure Device A: 
# Enable GVRP globally.  
 system-view 
[DeviceA] gvrp 
# Configure port GigabitEthernet 1/0/1 as a  trunk port, and assign it to all VLANs.  
[DeviceA] interface gigabitethernet 1/0/1 
[DeviceA-GigabitEthernet1/0/1] port link-type trunk 
[DeviceA-GigabitEthernet1/0/1] port trunk permit vlan all 
# Enable GVRP on GigabitEthernet 1/0/1, and set  the GVRP registration mode to forbidden on 
the port.  
[DeviceA-GigabitEthernet1/0/1] gvrp...

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# Display the local VLAN information that GVRP maintains on port GigabitEthernet 1/0/1 of 
Device B. 
[DeviceB] display gvrp local-vlan interface gigabitethernet 1/0/1 
 Following VLANs exist in GVRP local database: 
  1(default) 
According to the output, information about VLAN  1 is registered through GVRP, but static VLAN 
information of VLAN 3 on the local device and  dynamic VLAN information of VLAN 2 on Device 
A are not.   

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Configuring QinQ 
Throughout this document, customer network VLANs (CVLANs), also called inner VLANs, refer to the 
VLANs that a customer uses on the private network; and service provider network VLANs (SVLANs), also 
called outer VLANs, refer to the VLANs that a service provider uses to carry VLAN tagged traffic for 
customers. 
Overview 
802.1Q-in-802.1Q (QinQ) is a flexible, easy-to- implement Layer 2 VPN technology based on IEEE 
8 02.1 Q .  Q i n Q  e n a b l e s  t h e  e d g e  d e vi c e  o...

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Figure 57  Typical QinQ application scenario 
 
 
As shown in Figure 57, customer network A has CVLANs 1 through 10, and customer network B has 
CVLANs 1 through 20. The service provider assign s SVLAN 3 for customer network A, and assigns 
SVLAN 4 for customer network B.  
When a tagged Ethernet frame from customer network A arrives at a provider edge device (PE), the PE 
tags the frame with outer VLAN 3. When a tagged Ethernet frame from customer network B arrives at a 
PE, the PE tags the frame...

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Figure 58  Single-tagged Ethernet fr ame header and double-tagge d Ethernet frame header 
 
The default maximum transmission unit (MTU) of an interface is 1500 bytes. The size of an outer VLAN 
tag is 4 bytes. HP recommends you to increase the MTU of each interface on the service provider network 
to at least 1504 bytes.  
Implementations of QinQ 
HP provides the following QinQ implementations: basic QinQ and selective QinQ.  
•   Basic QinQ 
Basic QinQ enables a port to tag any incoming fram es...

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The device determines whether a received frame carries an SVLAN or CVLAN tag by checking the TPID 
value. For example, if a frame carries an SVLAN tag with TPID value 0x9100 and a CVLAN tag with TPID 
value 0x8100 and the configured TPID value of the SVLAN tag is 0x9100 and that of the CVLAN tag is 
0x8200, the device considers that the frame carries only the SVLAN tag but not the CVLAN tag.  
Devices of different vendors may set the TPID of the outer VLAN tag of QinQ frames to different values....