Configuring SNAplus2 for Enterprise Extender

Configuring SNAplus2 for Enterprise Extender White Paper 30
This dialog allows you to configure some advanced parameters on an
Enterprise Extender link station. Most users do not need to alter these
parameters, but these parameters can be used to improve performance.
The fields in this dialog, and their default settings, vary according to the
settings in
the standard link station dialog. Complete the standard dialog
before altering the settings in this dialog.
a. Maximum send BTU size
This is the size of the largest BTU that SNAplus2 can send on this link station.
The default value is the maximum BTU size configured for the port (in the
Enterprise Extender (HPR/IP) Advanced Parameters Dialog). This field can be
used to restrict the BTU size on a particular link to be smaller than configured
for the port. The actual BTU size is negotiated with the remote node when the
link station is started, unless the link is explicitly configured to use format 0
XIDs. To support HPR, the maximum BTU size for the port must be set to at
least 768.
b. Request CP-CP sessions
This option specifies whether SNAplus2 requests a CP-CP session with the
remote node.
If the link is set to be started on demand, and both the local and remote nodes
are netw
ork nodes, CP-CP sessions cannot be requested. Otherwise, the
default is to request CP-CP sessions for all links if the node is a network node,
and if the node is an end node, to request them for links where the remote
node type is set to
'Network node' or 'Discover'.
c. Remote node is network node server
This field is shown only if the local node is an end node, and the remote node
type is set to
'Network node' or 'Discover'.
Selecting this option allows the local node to activate the link to try to establish
CP
-CP sessions with the remote node. Such CP-CP sessions with a network
node server allow the local node to locate partner LUs dynamically.
By default, this option is selected if the remote node type is
'Network node'.
This option is not selected if the remote node type is '
Discover'.
d. Reactivate link station after failure
This option controls whether SNAplus2 attempts to reactivate the link after a
failure. If it is selected, and if the link fails once active or fails to start under
the control of an administration program (Motif or command-line), SNAplus2
tries to reactivate the link.
e. Acknowledgement timeout
This is the maximum time to wait for a response to a frame before
retransmitting it. The range is 0-65535.
f. Maximum retry count
This is the maximum number of times to retransmit a frame before dropping
the link. The range is 0-255.