From: Daniel C. Young (danyoung99@xxxxxxxxxxxx)
Date: Wed Jun 06 2001 - 04:37:36 GMT-3
Group,
On fatkid Q7, we need to accommodate for VLAN2's old SNA system that is
quite slow and can take over 45 seconds to acknowledge requests. Ensure that
reachability to this system is maintained.
Derek says:
dlsw timer sna-retry-interval 60
Cisco says:
The sna-retry-interval is the interval DLSw+ will wait for a response to a
TEST or XID request on a LAN before retransmitting the request. The default
is 30 seconds.
We thought it was:
llc2 idle-time 45000
Which, according to Cisco is for:
...end stations involved in the LLC2 connections (that) must periodically
check that the LLC2 connection is still active. One way of knowing that a
connection is active is by sending and receiving I-frames over the LLC2
connection. Each frame requires an acknowledgment that not only indicates
successful receipt of a frame, but also indicates that the connection is
still alive. If there is a period of time when no I-frames (in other words,
user data) traverse the LLC2 connection, then each workstation must send an
LLC2 packet, a receiver ready, to its partner and receive a response to
confirm that the LLC2 connection is still operational. The time that the
end-stations wait during idle traffic periods before sending a receiver
ready frame is called the LLC2 idle time.
Does anyone have a more authorative explanation on this? What is the
difference between the two commands? Which is the correct solution?
As you can tell, I struggled a bit with DLSW tonight. Thank you for all your
help and patience.
Daniel C. Young
Sr. Network Engineer
CCNP (ATM, Security & Voice Specialist),
CCDP, CCSE, MCSE+I
SBC Internet Data Center
(949) 221-1928 Work
(714) 350-8945 Cell
young@pobox.com
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