SNMP

This section applies to the Logical Interconnects and Logical Interconnect Group resources.

SNMPv1, v2

Enable or disable SNMP trap destinations and SNMP access.

SNMPv3

Enable or disable SNMPv3 trap destinations. Allows SNMP managers to oversee network status information on the interconnects.

System contact

Person to contact for assistance when SNMP is enabled, such as the Network administrator or Infrastructure administrator.

Must be at least four characters in length, if set.

Read community string
Shared community name for authentication that controls SNMP read access when SNMPv1, v2 is enabled.

It is recommended administrators change the string to use a nondefault value.

Data type:

For Virtual Connect Ethernet modules, the maximum length is 39.

For Virtual Connect Fibre Channel modules, the maximum length is 24.

SNMPv3 users
Name

Each SNMPv3 user name is associated with a security level.

Security Level

The SNMPv3 security level setting on the logical interconnect:

None

No security level is set.

Authentication

Requires an authentication protocol and password.

Authentication and privacy

Requires an authentication protocol and password, and a privacy protocol and password.

Authentication Protocol

The authentication protocols available depend upon the settings of your appliance.

MD5
Message Digest 5 (MD5) authentication protocol.
NOTE:

MD5 is not allowed for secure modes.

SHA1

Secure Hash Algorithm 1 (SHA1) authentication protocol.

SHA-256

Cryptographic hash function uses 256 bits.

SHA-384

Cryptographic hash function uses 384 bits.

SHA-512

Cryptographic hash function uses 512 bits.

Privacy Protocol

The privacy protocols available depend upon the settings of your appliance.

DES
Data Encryption Standard (DES) method of data encryption.
NOTE:

DES is not allowed for secure modes.

3DES

Triple Data Encryption Standard (3DES) method of data encryption applies the DES cipher algorithm three times to each data block.

AES-128

Advanced Encryption Standard (AES) method of data encryption with a key size of 128 bits.

AES-192

AES data encryption with a key size of 192 bits.

AES-256

AES data encryption with a key size of 256 bits.

Trap Destinations
Destination

IP address or host name of the SNMP manager where traps are forwarded. Use an IP address for Virtual Connect Fibre Channel interconnects; a host name does not apply.

Both IPv4 and IPv6 addresses are supported.

Port

The port number, from 1 to 65535, configured at the destination receiving SNMP traps.

Default: 162

Trap format

Format of traps: SNMPv1, SNMPv2, or SNMPv3

Setting the destination as an SNMPv1 or SNMPv2 trap, only requires configuring the community string.

Setting the destination as an SNMPv3 trap, requires you also set the SNMPv3 Notification type and User name.

Use SNMPv1 for Virtual Connect Fibre Channel interconnects.

Notification type (SNMPv3)
Trap

An unacknowledged SNMP notification.

Inform

An acknowledgeable SNMP notification.

Engine ID

The engine ID of the remote user. Engine IDs consist of prefix '0x' and an even number of up to 64 hexadecimal digits. If not specified, User name is considered to be a local SNMPv3 user. This property must be specified for an Inform notification type.

User name (SNMPv3)

SNMPv3 user name for traps and informs.

Severity

Severity of traps.

NOTE:

Severity settings do not apply to Virtual Connect Fibre Channel interconnects. Virtual Connect Fibre Channel modules will have severity set to None.

Critical

The SNMP manager cannot manage installed components.

Major

One or more component subsystems are not operating properly, seriously disrupting to functions.

Minor

One or more component subsystems are not operating properly, slightly disrupting to functions.

Warning

The component has a potential problem.

Normal

The component is fully functional.

Info

Operational information on a fully functioning component.

Unknown

The SNMP manager has not yet established communication with the component.

VCM traps

Trap category for VCM (Virtual Connect Manager): Legacy

VC-Enet traps

Virtual Connect Ethernet trap categories:

Port Status

When a link changes from being up or down.

Port Thresholds

Throughput utilization thresholds are exceeded.

Other

Authentication failures.

VC-FC traps

Virtual Connect Fibre Channel trap categories:

Port Status

When a link changes from being up or down.

Other

Authentication failures.

If no Fibre Channel category is selected in SNMP Add Trap Destination menu, no SNMP trap configuration will be configured on Virtual Connect Fibre Channel module.

SNMP Access

SNMP access enables you to configure addresses that are allowed to receive responses from interconnects when they query for SNMP information.

If one or more IP or Subnet addresses are specified for SNMP access, only those addresses can receive responses from the interconnects. If no addresses are configured for SNMP access, any IP address can receive responses from the interconnects using SNMP.

SNMP access is not available for Virtual Connect Fibre Channel interconnects.

IP or subnet

IP addresses for SNMP access are specified in CIDR (Classless Inter-Domain Routing) format. You can define up to 16 SNMP access addresses.

IPv4 and IPv6 addresses are supported.