HP 5500 Ei 5500 Si Switch Series Configuration Guide

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# Display the sFlow configuration and operation information. 
[Device-GigabitEthernet1/0/1] display sflow 
sFlow Version: 5 
sFlow Global Information: 
Agent        IP:3.3.3.1  
Collector Information: 
ID    IP                                 Port   Aging    Size   Descript\
ion 
1                                        6343   0        1400 
2     3.3.3.2                            6543   N/A      1400   netserve\
r 
3                                        6343   0        1400 
4...

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Configuring IPC 
This chapter provides an overview of IPC and describes the IPC monitoring commands.  
Overview 
Inter-Process Communication (IPC) provides a reliable communication mechanism among processing 
units, typically CPUs. IPC is typically used on a distributed device or in an IRF fabric to provide reliable 
inter-card or inter-device transmission. This section describes the basic IPC concepts. 
Node 
An IPC node is an independent IPC-capable processing unit, typically, a CPU. 
This series...

 152 
Figure 54  Relationship between a node, link and channel 
 
 
Packet sending modes 
IPC uses one of the following modes to send packets for upper layer application modules: 
•  Unicast —One node sends packets to another node. 
•   Multicast —One node sends packets to multiple nodes. This mode includes broadcast, a special 
multicast. To use multicast mode, an application module must create a multicast group that includes 
a set of nodes. Multicasts destined for this group are sent to all the nodes...

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Displaying and maintaining IPC 
 
Task Command Remarks 
Display IPC node information.  display ipc node
 [ | { begin | 
exclude  | include  } 
regular-expression  ]  Available in any view
 
Display channel information for a 
node.  display ipc channel
 { node node-id  
|  self-node  } [ | { begin | exclude  | 
include  } regular-expression ]  Available in any view
 
Display queue information for a 
node.  display ipc queue { node
 node-id  | 
self-node  } [ | { begin |  exclude | 
include  }...

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Configuring PoE 
Overview 
Power over Ethernet (PoE) enables a power sourcing equipment (PSE) to supply power to powered 
devices (PDs) through Ethernet inte rfaces over twisted pair cables. 
Advantages 
•  Reliable —Power is supplied in a centralized way so that it is very convenient to provide a backup 
power supply. 
•   Easy to connect — A  n e t wo rk  t e r m i n a l  re q u i re s  n o  ex t e r n a l   power supply but only an Ethernet cable. 
•   Standard—In compliance with IEEE 802.3af,...

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PoE configuration task list 
You can configure a PoE interface by using either of the following methods: 
•  At the command line interface (CLI). 
•   Through configuring the PoE profile and applying the PoE profile to the PoE interface. 
To configure a single PoE interface, configure it at th e CLI. To configure PoE interfaces in batches, use the 
PoE profile. For a PoE configuration parameter of a PoE interface, you can only select one mode 
(including modification and removal of a PoE...

 156 
Enabling PoE 
Enabling PoE for a PoE interface 
The system does not supply power to or reserve power  for the PDs connected to a PoE interface if the PoE 
interface is not enabled with the PoE function. 
You are allowed to enable PoE for a PoE interface if the PoE interface will not result in PoE power overload; 
otherwise, whether you can enable PoE for the PoE  interface depends on whether the PoE interface is 
enabled with the PoE power management function. For more information about the PoE...

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Detecting PDs 
Enabling the PSE to detect nonstandard PDs 
There are standard PDs and nonstandard PDs. Usually, the PSE can detect only standard PDs and supply 
power to them. The PSE can detect nonstandard PDs and supply power to them only after the PSE is 
enabled to detect nonstandard PDs. 
To enable the PSE to detect nonstandard PDs: 
 
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enable the PSE to detect 
nonstandard PDs.  poe legacy enable 
pse pse-id  By default, the...

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Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Enter PoE interface view.  interface 
interface-type 
interface-number   N/A 
3.
  Configure the maximum 
power for the PoE interface.  poe max-power 
max-power Optional. 
By default, 30000 milliwatts is the 
maximum power for the PoE 
interface for PoE+ switches. 
 
Configuring PoE power management 
PoE power management involves PSE power management and PoE interface power management. 
Configuring PoE interface power management...

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Configuration procedure 
To configure PoE interface power management:  
Step Command Remarks 
1.  Enter system view. 
system-view  N/A 
2.  Configure PoE interface 
power management priority 
policy.  poe pd-policy priority 
By default, this policy is not 
configured. 
3.
  Enter PoE interface view.  interface 
interface-type 
interface-number   N/A 
4.
  Configure the power supply 
priority for a PoE interface.  poe priority
 { critical | high | low  } 
Optional. 
By default, low  is the power...