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HP 5500 Ei 5500 Si Switch Series Configuration Guide

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    							viii 
Protocols and standards ··················\
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MVRP configuration task list  ··················\
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Configuration prerequisites ··················\
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Enabling MVRP ··················\
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Configuration restrictions and guidelines ··················\
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Configuration  procedure ··················\
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Configuring the MVRP registration mode ··················\
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Configuring MRP timers  ··················\
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Enabling GVRP compatibility ··················\
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Configuration restrictio ns and guidelines ··················\
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Configuration  procedure ··················\
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Displaying and ma intaining MVRP ··················\
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Configuration example for MVRP in  normal registration mode ··················\
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Network requirements  ··················\
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Configuration procedure ··················\
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Index ··················\
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    							1 
Configuring Ethernet interfaces 
Ethernet interface naming conventions 
The GE and 10-GE interfaces on the switches are named in the format of interface-type A/B/C, where 
the following definitions apply:  
•   A—Represents the ID of the switch in an IRF fabric. If the switch is not assigned to any IRF fabric, A 
uses 1.  
•   B— R e p re s e n t s  a  s l o t  n u m b e r  o n  t h e  s w i t c h .  I t  u s e s  0   for fixed interfaces, 1 for interfaces on interface 
expansion card 1, and 2 for interfaces on interface expansion card 2.  
•   C—Represents the number of an interface on a slot. 
 
  NOTE: 
The GE ports of the GE interface expansion card ar e displayed as 10-GE ports on the switch where the 
expansion card is installed. 
 
For more information about the expansion cards, see  H P  55 0 0  E I  S w i t c h  S e r i e s  I n s t a l l a t i o n  G u i d e and HP 
5500 SI Switch Series Installation Guide . 
Performing general configurations 
This section describes the attributes and configurations common to Layer 2 and Layer 3 Ethernet 
interfaces.  
•  For more information about the attributes and co nfiguration of Layer 2 Ethernet interfaces, see 
 Configuring a Layer 2 Ethernet interface .
  
•   For more information about the attributes and co nfiguration of Layer 3 Ethernet interfaces, see 
 Setting the MTU for a Layer 3 Ethernet interface .
  
Configuring a combo interface 
A combo interface is a logical interface that comprises one optical (fiber) port and one electrical (copper) 
port. The two ports share one forwarding interface,  so they cannot work simultaneously. When you 
enable one port, the other is automatically disabled. 
The fiber combo port and cooper combo port are La yer 2 Ethernet interfaces. They have their own 
separate interface views, in which you can activate the fiber or copper combo port and configure other 
port attributes such as the in terface rate and duplex mode. 
Configuration prerequisites 
Before you configure a combo interface, complete the following tasks: 
•  Use the  display port combo  command to identif y the combo interfaces on your switch and identify 
the two physical ports that compose each combo interface.  
•   Use the  display interface command to determine, of the two physical ports that compose a combo 
interface, which is the fiber combo port and which  is the copper combo port. If the current port is 
the copper port, the output will include Media type is twisted pair, Port hardware type is
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    							2 
1000_BASE_T. If the current port is the fiber port, the output will not include the information 
mentioned above. 
Changing the active port of a combo interface 
 
Step Command Remarks 
1.   Enter system view. 
system-view  N/A 
2.  Enter Ethernet interface view.  interface 
interface-type 
interface-number   N/A 
3.
  Activate the current interface.  undo shutdown  Optional. 
By default, of the two ports 
that compose a combo 
interface, the one with a 
smaller port ID is active.  
 
Configuring basic settings of an Ethernet interface 
You can set an Ethernet interface to operate in one of the following duplex modes: 
•
  Full-duplex mode (full)—Interfaces that operate in this  mode can send and receive packets 
simultaneously. 
•   Half-duplex mode (half) —Interfaces that operate in this mo de cannot send and receive packets 
simultaneously. 
•   Auto-negotiation mode (auto)—Interfaces that operate in this mo de negotiate a duplex mode with 
their peers. 
You can set the speed of an Ethernet interface or enable it to automatically negotiate a speed with its 
peer. For a 100-Mbps or 1000-Mbps Layer 2 Ethernet  interface, you can also set speed options for auto 
negotiation. The two ends can select a speed only from the available options. For more information, see 
 Setting speed options for auto negotiation on an Ethernet interface .
  
To configure an Ethernet interface: 
 
Step Command Remarks 
1.   Enter system view. 
system-view  N/A 
2.  Enter Ethernet interface view.  interface 
interface-type 
interface-number   N/A 
3.
  Set the interface description. 
description text  Optional. 
By default, the description of an 
interface is in the format of 
interface-name
 Interface . For 
example,  GigabitEthernet1/0/1 
Interface .
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    							3 
Step Command Remarks 
4.  Set the duplex mode of the 
interface.  duplex
 { auto | full |  half }  Optional. 
By default, 
the duplex mode is  auto 
for Ethernet interfaces. 
The  half keyword is not applicable 
to Ethernet copper ports that are 
configured with a 1000-Mbps port 
speed and fiber ports. 
5.   Set the port speed. 
speed { 10 | 100  | 1000   | auto  } 
Optional. 
By default, an Ethernet interface 
automatically negotiates a speed 
with the peer. 
A Gigabit fiber port does not 
support the  10 or 100 keyword,  
A 10-Gigabit fiber port does not 
support this command 
6.   Restore the default settings for 
the interface.  default 
Optional. 
 
Shutting down an Ethernet interface  
 CAUTION: 
Use this feature with caution. After you manually shut
 down an Ethernet interface, the Ethernet interface
 
cannot forward packets even if it is physically connected.  
You might need to shut down and then bring up an  Ethernet interface to activate some configuration 
changes, for example, the speed or duplex mode changes. 
To shut down an Ethernet interface or a group of Ethernet interfaces: 
 
Step Command Remarks 
1.   Enter system view. 
system-view  N/A 
2.  Enter Ethernet 
interface view or 
port group view.  
• Enter Ethernet interface view:  
interface  interface-type 
interface-number 
•  Enter port group view: 
port-group manual  port-group-name  Use any command. 
To shut down an Ethernet interface, 
enter Ethernet interface.  
To shut down all Ethernet interfaces in 
a port group, enter port group view. 
3.
  Shut down the 
Ethernet interface 
or interfaces.  shutdown 
By default, Ethernet interfaces are up. 
 
 
Configuring flow control on an Ethernet interface 
To avoid packet drops on a link, you can enable flow control at both ends of the link. When traffic 
congestion occurs at the receiving end, the receivin g end sends a flow control (Pause) frame to ask the 
sending end to suspend sending packets
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    							4 
•  With the  flow-control  command configured, an interface can both send and receive flow control 
frames: When congested, the interface sends a flow  control frame to its peer. Upon receiving a flow 
control frame from the peer, the interface suspends sending packets. 
•   With the  flow-control receive enable  command configured, an interface can receive, but not send 
flow control frames. When the interface receives a flow control frame from its peer, it suspends 
sending packets to the peer. When congested, the in ter fac e  c annot send fl ow  c ontrol  frames  to  the  
peer.  
To handle unidirectional traffic congestion on a link, configure the  flow-control receive enable command 
at one end, and the  flow-control command at the other. To enable both ends of the l ink to handle traffic 
congestion, configure the  flow-control command at both ends.  
To enable flow control on an Ethernet interface: 
 
Step Command Remarks 
1.   Enter system view. 
system-view  N/A 
2.  Enter Ethernet interface 
view.  interface
 interface-type 
interface-number   N/A 
3.
  Enable flow control. 
• Enable TxRx flow control:  
flow-control 
•  Enable Rx flow control: 
flow-control receive enable  Use either command. 
By default, Rx flow control is disabled 
on an Ethernet interface.  
 
Configuring link state change suppression on an Ethernet 
interface 
An Ethernet interface has two physical link states: 
up and down. Each time the physical link of an 
interface goes up or comes down, the physical laye r reports the change to the upper layers, and the 
upper layers handle the change, re sulting in increased overhead.  
To prevent physical link flapping from affecting system performance, configure link change suppression 
to delay the reporting of physical link state change s. When the delay expires, the interface reports any 
detected change.  
Link change suppression does not suppress administrat ive up or down events. When you shut down or 
bring up an interface by using the  shutdown or undo shutdown  command, the interface reports the event 
to the upper layers immediately. 
Link-down event suppression enables an interface to  suppress link-down events and start a delay timer 
each time the physical link goes down. During this  delay, the interface does not report the link-down 
event, and the  display interface brief  or display interface command displays the in terface state as UP. If 
the physical link is still down when the timer expires, the interface reports the link-down event to the upper 
layers.  
Link-up event suppression enables an interface to su ppress link-up events and start a delay timer each 
time the physical link goes up. Duri ng this delay, the interface does no t report the link-up event, and the 
display interface brief  or display interface command displays the interface state as DOWN. If the 
physical link is still up when the timer expires, the  interface reports the link-up event to the upper layers.  
Configuring link-down event suppression 
To enable an Ethernet interface to suppress link-down events:
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    							5 
Step Command Remarks 
1.  Enter system view.  system-view  N/A 
2.  Enter Ethernet interface 
view.  interface 
interface-type 
interface-number  N/A 
3.
  Set a link-down event 
suppression interval.  link-delay 
delay-time Link-down event suppression is disabled by 
default.  
 
Configuring link-up event suppression 
To configure link-up event suppression on an Ethernet interface:  
Step Command Remarks 
1.
  Enter system view. 
system-view  N/A 
2.  Enter Ethernet interface 
view.  interface 
interface-type 
interface-number  N/A 
3.
  Set a link-up event 
suppression interval.  link-delay 
delay-time  mode up Link-up event suppression is disabled by 
default.  
 
 NOTE: 
The link-delay mode up  command and the link-delay
 command supersedes each other, and whichever is
configured last takes effect. 
 
Configuring loopback testing on an Ethernet interface 
If an Ethernet interface does not work normally, yo u can enable loopback testing on it to identify the 
problem. Loopback testing has the following types: 
•   Internal loopback testing —Tests all on-chip functions related to Ethernet interfaces. 
•   External loopback testing —Tests hardware of Ethernet interfaces. To perform external loopback 
testing on an Ethernet interface, connect a loopback  plug to the Ethernet interface. The switch sends 
test packets out of the interface, which are expected to loop over the plug and back to the interface. 
If the interface fails to receive any test packet, the hardware of the interface is faulty. 
An Ethernet interface in a loopback test does not forward data traffic. 
Configuration restrictions and guidelines 
•   On an interface that is physically down, you ca n only perform internal loopback testing. On an 
interface administratively shut down, you can pe rform neither internal nor external loopback 
testing. 
•   During loopback testing, the Ethernet interface  operates in full duplex mode. When you disable 
loopback testing, the interface returns to its duplex setting. 
•   Loopback testing is a one-time operation, and is not recorded in the configuration file. 
Configuration procedure 
To enable loopback testing on an Ethernet interface:  
Step Command Remarks 
1.  Enter system view.  system-view  N/A
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    							6 
Step Command Remarks 
2.  Enter Ethernet interface view.  interface 
interface-type 
interface-number   N/A 
3.
  Enable loopback testing.  loopback { external |  internal }  Optional. 
Disabled by default. 
 
Configuring the link mode of an Ethernet interface (available 
only on the 5500 EI) 
 
 
CAUTION: 
•
  After you change the link mode of an Ethernet interface, all the settings of the Ethernet interface are 
restored to their defaults under the new link mode. 
•   The link mode configuration for an Ethernet interfac e in system view and in interface view supersedes 
each other. 
 
An Ethernet interface operates either in Layer 2 (bridge) or Layer 3 (route) mode. To meet networking 
requirements, you can use a command to set the link mo de of an Ethernet interface to bridge or route. 
To change the link mode of an Ethernet interface: 
 
Step Command  Remarks 
1.  Enter system 
view.  system-view 
N/A 
2.  Change the link 
mode of 
Ethernet 
interfaces. • In system view:  
port link-mode  { bridge | route  } interface-list 
• In Ethernet interface view: 
a.  interface  interface-type interface-number 
b.  port  link-mode  { bridge | route  }  Use either approach. 
 
Configuring jumbo frame support 
An Ethernet interface might receive some frames la
rger than the standard Ethernet frame size (called 
jumbo frames) during high-throughput data exchange s such as file transfers. Usually, an Ethernet 
interface discards jumbo frames. With jumbo frame  support enabled, the interface can process frames 
larger than the standard Ethernet frame size yet within the specified range.  
In interface configuration mode (Eth ernet interface view or port group view), you can set the length of 
jumbo frames that are allowed to pass through the Ethernet interface. 
•   If you execute the command in Ethernet interface view, the configuration takes effect only on the 
interface. 
•   If you execute the command in port group view, the co nfiguration takes effect on all ports in the port 
group. 
To configure jumbo frame support in interface view or port group view:
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    							7 
Step Command Remarks 
1.  Enter system view.  system-view  N/A 
2.  Enter Ethernet 
interface view.  interface
 interface-type 
interface-number  N/A
 
3.  Configure jumbo 
frame support.  jumboframe enable 
[ value ] By default, the switch allows jumbo frames within 
9216 bytes to pass through Ethernet interfaces. 
If you set the 
value argument multiple times, the 
latest configuration takes effect. 
 
Enabling the auto power-down function on an Ethernet 
interface 
To save power, enable the auto power-down function on Ethernet interfaces. An interface enters the 
power save mode if it has not received any packet for  a certain period of time (this interval depends on 
the specifications of the chip, and is not configurable ). When a packet arrives later, the interface enters 
its normal state.  
To enable auto power-down on an Ethernet interface: 
 
Step Command Remarks 
1.   Enter system view. 
system-view  N/A 
2.  Enter Ethernet 
interface view.  interface 
interface-type 
interface-number   N/A 
3.
  Enable auto 
power-down on an 
Ethernet interface.  port auto-power-down 
Disabled by default. 
 
NOTE: 
When you connect an interface enabled with auto power-down to a device, if the link cannot go up 
properly, disable auto power-down  on the interface and try again.  
 
Configuring a Layer 2 Ethernet interface 
Layer 2 Ethernet interface configuration task list  
Task Remarks 
Configuring a port group  Optional 
Applicable to Layer 2 Ethernet interfaces 
Configuring a MAC Address for an Ethernet port 
(available only on the 5500 SI) Optional 
Applicable to Layer 2 Ethernet interfaces 
Setting speed options for auto negotiation on an 
Ethernet interface Optional 
Applicable to Layer 2 Ethernet interfaces
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    							8 
Task Remarks 
Configuring storm suppression Optional 
Applicable to Layer 2 Ethernet interfaces 
Setting the statistics polling interval Optional 
Applicable to Layer 2 Ethernet interfaces 
Enabling loopback detection on an Ethernet interface Optional 
Applicable to Layer 2 Ethernet interfaces 
Setting the MDI mode of an Ethernet interface Optional 
Applicable to Layer 2 Ethernet interfaces 
Enabling bridging on an Ethernet interface Optional 
Applicable to Layer 2 Ethernet interfaces 
Testing the cable connection of an Ethernet interface Optional 
Applicable to Layer 2 Ethernet interfaces 
Configuring storm control on an Ethernet interface Optional 
Applicable to Layer 2 Ethernet interfaces 
 
Configuring a port group 
Some interfaces on your switch might use the same se
t of settings. To configure these interfaces in bulk 
rather than one by one, you can assign them to a port group.  
You create port groups manually. All settings made for a port group apply to all the member ports of the 
group. 
Even though the settings are made on the port group,  they are saved on each interface basis rather than 
on a port group basis. You can only view the settings in the view of each interface by using the  display 
current-configuration  or display this  command.  
To configure a manual port group: 
 
Step Command Remarks 
1.   Enter system view. 
system-view N/A 
2.  Create a manual port 
group and enter manual 
port group view.  port-group manual
 
port-group-name  N/A 
3.
  Assign Ethernet interfaces 
to the manual port group.  group-member
 
interface-list   N/A 
4.
  Configure jumbo frame 
support.  jumboframe enable 
[ value
 ]  By default, the switch allows jumbo frames 
within 9216 bytes to pass through Ethernet 
interfaces. 
If you set the value
 argument multiple times, the 
latest configuration takes effect.  
5.  Enable auto power-down.  port auto-power-down Disabled by default.
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    							9 
Configuring a MAC Address for an Ethernet port (available 
only on the 5500 SI) 
You can use this function to manually configure a MAC address for an Ethernet port. After that, when the 
switch sends packets of Layer 2 protocols (including cluster, DLDP, HABP, LACP, LLDP, MSTP, NDP, NTDP, 
and GVRP) out of this port, it can use the MAC address of this port as the source MAC address of these 
protocol packets.  
Configuring a MAC address for an Ethernet port does not affect the normal forwarding of service 
packets. 
To configure a MAC Address for an Ethernet port: 
 
Step Command Remarks 
1.   Enter system view. 
system-view  N/A 
2.  Enter Ethernet port view.  interface 
interface-type 
interface-number   N/A 
3.
  Configure a MAC address for 
the current port.  mac-address
 mac-address  The default MAC address of an 
Ethernet port varies with device 
models. 
 
Setting speed options for auto negotiation on an Ethernet 
interface 
Speed auto negotiation enables an Ethernet interface to negotiate with its peer for the highest speed that 
both ends support by default. You can narrow down the speed option list for negotiation.  
Figure 1
 Speed auto negotiation application scenario 
 
 
As shown in Figure 1, all ports on Switch A are operating in speed auto negotiation mode, with the 
highest speed of 1000 Mbps. If the transmission rate of each server in the server cluster is 1000 Mbps, 
their total transmission rate will exceed the capability  of port GigabitEthernet 1/0/4, the port providing 
access to the Internet for the servers.  
G E
1/0/3
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