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Page 56 / 96 Scroll up to view Page 51 - 55
Chapter 5
Advanced Configuration
49
WebView Switches
Alternate
•
Provides an alternate path to the root
device from the root interface.
Backup
•
Provides a backup path to the designated
port path toward the Spanning Tree leaves. Backup
ports occur only when two ports are connected in a
loop by a point-to-point link. Backup ports also occur
when a LAN has two or more connections connected
to a shared segment.
Disabled
•
Indicates the port is not participating in the
Spanning Tree.
Interface Priority
Defines the interface priority for
specified instance. The default value is
128
.
Path
Cost
Indicates
the
port
contribution
to
the
Spanning Tree instance. The range should always be
1
–
200,000,000
.
Designated Bridge ID
Indicates that the bridge ID
number that connects the link or shared LAN to the root.
Designated Port ID
Indicates that the Port ID number on
the designated bridge that connects the link or the shared
LAN to the root.
Designated Cost
Indicates that the default path cost
is assigned according to the method selected on the
Spanning Tree Global Settings
screen.
Forward Transitions
Indicates the number of times the
port has changed from
Forwarding
state to
Blocking
state.
Remaining Hops
Indicates the hops remaining to the
next destination.
Multicast > IGMP Snooping
When Internet Group Management Protocol (IGMP)
Snooping is enabled globally, all IGMP packets are
forwarded to the CPU. The CPU analyzes the incoming
packets and determines:
Which ports want to join which Multicast groups?
•
Which ports have Multicast routers generating IGMP
•
queries?
Which routing protocols are forwarding packets and
•
Multicast traffic?
Ports requesting to join a specific Multicast group issue an
IGMP report, specifying that Multicast group is accepting
members. This results in the creation of the Multicast
filtering database.
Multicast > IGMP Snooping
IGMP Snooping Status
Indicates if IGMP Snooping is
enabled on the device. IGMP Snooping can be enabled
only if Bridge Multicast Filtering is enabled.
VLAN ID
Specifies the VLAN ID.
IGMP Status
Indicates if IGMP snooping is enabled on
the VLAN.
Auto Learn
Indicates if Auto Learn is enabled on the
device. If Auto Learn is enabled, the device automatically
learns where other Multicast groups are located. Enables
or disables Auto Learn on the Ethernet device.
Host Timeout
Indicates the amount of time the host
waits to receive a message before timing out. The default
time is
260
seconds.
MRouter Timeout
Indicates the amount of the time the
Multicast router waits to receive a message before it times
out. The default value is
300
seconds.
Page 57 / 96
Chapter 5
Advanced Configuration
50
WebView Switches
Leave Timeout
Indicates the amount of time the host
waits, after requesting to leave the IGMP group and not
receiving a Join message from another station, before
timing out. If a Leave Timeout occurs, the switch notifies
the Multicast device to stop sending traffic The Leave
Timeout value is either user-defined, or an immediate
leave value. The default timeout is
10
seconds.
Multicast > Bridge Multicast
The
Bridge Multicast
screen displays the ports and LAGs
attached to the Multicast service group in the Ports and
LAGs tables. The Port and LAG tables also reflect the
manner in which the port or LAGs joined the Multicast
group. Ports can be added either to existing groups or to
new Multicast service groups. The
Bridge Multicast
screen
permits new Multicast service groups to be created. The
Bridge Multicast
screen also assigns ports to a specific
Multicast service address group.
Multicast > Bridge Multicast
The
Bridge Multicast
screen is divided into two areas,
Configuring Multicast and Multicast Table. The fields are
the same for both areas.
Enable
Bridge
Multicast
Filtering
Enables
Bridge
Multicast Filtering.
VLAN ID
Identifies a VLAN to be configured to a Multicast
service.
Bridge Multicast Address
Identifies the Multicast group
MAC address/IP address.
Bridge IP Multicast
Displays the port that can be added
to a Multicast service.
Interface or LAG
Displays LAG that can be added to a
Multicast service.
The configuration options are as follows:
Static
•
The port is user-defined.
Dynamic
•
The port is configured dynamically.
Forbidden
•
Forbidden ports are not included the
Multicast group, even if IGMP snooping designated
the port to join a Multicast group.
None
•
The port is not configured for Multicast service.
Use the
Add to List
button to add the configured RMON
event to the Event Table at the bottom of the screen.
Multicast > Bridge Multicast Forward All
The
Bridge Multicast Forward All
screen contains fields
for attaching ports or LAGs to a device that is attached
to a neighboring Multicast router/switch. Once IGMP
Snooping is enabled, Multicast packets are forwarded to
the appropriate port or VLAN.
Multicast > Bridge Multicast Forward All
The
Bridge Multicast Forward All
screen contains the
following fields:
VLAN
ID
Displays
the
VLAN
for
which
Multicast
parameters are displayed.
The configuration options are as follows:
None
•
The port is not configured for Multicast service.
Forbidden
•
Forbidden ports are not included the
Multicast group, even if IGMP snooping designated
the port to join a Multicast group.
Static
•
The port is user-defined.
Dynamic
•
The port is configured dynamically.
Page 58 / 96
Chapter 5
Advanced Configuration
51
WebView Switches
SNMP > Global Parameters
The
Global Parameters
screen contains parameters for
defining SNMP notification parameters.
SNMP > Global Parameters
Local Engine ID
Indicates the local device engine ID. The
field value is a hexadecimal string. Each byte in hexadecimal
character strings consists of two hexadecimal digits. Each
byte can be separated by a period or a colon. The Engine
ID must be defined before SNMPv3 is enabled. For stand-
alone devices, select a default Engine ID that is comprised
of Enterprise number and the default MAC address. For a
stackable system configure the Engine ID, and verify that
the Engine ID is unique for the administrative domain.
This prevents two devices in a network from having the
same Engine ID.
Use Default
Uses the device generated Engine ID. The
default Engine ID is based on the device MAC address and
is defined per standard as:
First 4 octets—first bit = 1, the rest is IANA Enterprise
•
number.
Fifth octet—Set to
•
3
to indicate the MAC address that
follows.
Last 6 octets—MAC address of the device.
•
SNMP Notifications
Indicates if the device can send
SNMP notifications.
Authentication
Notifications
Indicates
if
SNMP
Authentication failure notification is enabled on the
device.
SNMP > Views
SNMP Views provide access or block access to device
features or feature aspects. For example, a view can be
defined that states that SNMP Group A has Read Only
(R/O) access to Multicast groups, while SNMP Group B
has Read-Write (R/W) access to Multicast groups. Feature
access is granted via the MIB name, or MIB Object ID.
SNMP > Views
View Name
Displays the user-defined views. The options
are as follows:
Default
•
Displays the default SNMP view for read and
read/write views.
DefaultSuper
•
Displays the default SNMP view for
administrator views.
Subtree ID Tree
Indicates the device feature OID included
or excluded in the selected SNMP view. The options to
select the Subtree are as follows:
Select from List
•
Select the Subtree from the list
provided.
Insert
•
Enables a Subtree not included in the Select
from List field to be entered.
View Type
Indicates if the defined OID branch will be
included or excluded in the selected SNMP view.
Use the
Add to List
button to add the Views configuration
to the Views Table at the bottom of the screen.
Page 59 / 96
Chapter 5
Advanced Configuration
52
WebView Switches
SNMP > Group Profile
The
Group Profile
screen provides information for creating
SNMP groups and assigning SNMP access control privileges
to SNMP groups. Groups allow network managers to
assign access rights to specific device features, or features
aspects.
SNMP > Group Profile
Group Name
Displays the user-defined group name
(up to 30 characters) to which access control rules are
applied.
Security Model
Defines the SNMP version attached to
the group. The possible field values are:
SNMPv1
•
SNMPv1 is defined for the group.
SNMPv2
•
SNMPv2 is defined for the group.
SNMPv3
•
SNMPv3 is defined for the group.
Security Level
Defines the security level attached to the
group. Security levels apply to SNMPv3 only. The possible
field values are:
No
Authentication
•
Indicates
that
neither
the
Authentication nor the Privacy security levels are
assigned to the group.
Authentication
•
Authenticates SNMP messages, and
ensures the SNMP messages origin is authenticated.
Privacy
•
Encrypts SNMP messages.
Operation
Defines the group access rights. The possible
field values are:
Read
•
The management access is restricted to read-
only, and changes cannot be made to the assigned
SNMP view.
Write
•
The management access is read-write and
changes can be made to the assigned SNMP view.
Notify
•
Sends traps for the assigned SNMP view.
SNMP > Group Membership
The
Group Membership
screen provides information
for assigning SNMP access control privileges to SNMP
groups.
SNMP > Group Membership
User name
Provides a user-defined local user list.
Engine ID
Indicates either the local or remote SNMP entity
to which the user is connected. Changing or removing the
local SNMP Engine ID deletes the SNMPv3 User Database.
Local
•
Indicates that the user is connected to a local
SNMP entity.
Remote
•
Indicates that the user is connected to a
remote SNMP entity. If the Engine ID is defined, remote
devices receive inform messages.
Group Name
Contains a list of user-defined SNMP
groups. SNMP groups are defined in the SNMP Group
Profile page.
Authentication Method
Indicates the Authentication
method used. The possible field values are:
None
•
Indicates that no authentication method is
used to authenticate the port.
MD5 Password
•
Indicates that port authentication
is
performed
via
HMAC-MD5-96
password
authentication.
SHA Password
•
Indicates that port authentication
is
performed
via
HMAC-SHA-96
password
authentication.
MD5
Key
•
Indicates
that
port
authentication
is
performed via the HMAC-MD5 algorithm.
SHA
Key
•
Indicates
that
port
authentication
is
performed via HMAC-SHA-96 authentication.
Password
Define the local user password. Local user
passwords can contain up to 159 characters.
Page 60 / 96
Chapter 5
Advanced Configuration
53
WebView Switches
Authentication
Key
Defines
the
HMAC-MD5-96
or
HMAC-SHA-96 authentication level. The authentication
and privacy keys are entered to define the authentication
key. If only authentication is required, 16 bytes are defined.
If both privacy and authentication are required, 32 bytes
are defined. Each byte in hexadecimal character strings is
two hexadecimal digits. Each byte can be separated by a
period or a colon.
Privacy Key
Defines the Privacy Key (LSB). If only
authentication is required, 20 bytes are defined. If both
privacy and authentication are required, 36 bytes are
defined. Each byte in hexadecimal character strings is
two hexadecimal digits. Each byte can be separated by a
period or colon.
Use the
Add to List
button to add the Group Membership
configuration to the respective table at the bottom of the
screen.
SNMP > Communities
The
Communities
screen contains three areas:
Communities
•
Basic Table
•
Advanced Table
•
SNMP > Communities
SNMP Management Station
Defines the management
station
IP
address
for
which
the
advanced
SNMP
community is defined. There are two definition options:
Define the management station IP address.
•
All
•
Includes all management station IP addresses.
Community
String
Defines
the
password
used
to
authenticate the management station to the device.
Basic
Enables SNMP Basic mode for a selected community
and contains the following fields:
Access Mode
Defines the access rights of the community.
The possible field values are:
Read Only
•
Management access is restricted to read-
only, and changes cannot be made to the community.
Read Write
•
Management access is read-write and
changes can be made to the device configuration, but
not to the community.
SNMP
Admin
•
User
has
access
to
all
device
configuration options, as well as permissions to modify
the community.
View Name
Contains a list of user-defined SNMP views.
Advanced
Enables SNMP Advanced mode for a selected
community and contains the following fields:
Group Name
Defines advanced SNMP communities
group names.
Use the
Add to List
button to add the Communities
configuration to the respective Table at the bottom of the
screen.

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