Alcatel-Lucent 7750 Reference Manual page 65

Table 8: Wholesale-Retail: L2TP Tunneled Access Mode (description) (Continued)
Attribute ID
26-6527-120 Alc-Tunnel-Rx-Window-Size
26-6527-144 Alc-Tunnel-Acct-Policy
26-6527-204 Alc-Tunnel-DF-bit
26-6527-214 Alc-Tunnel-Recovery-Method
7750 SR RADIUS Attributes Reference Guide
Attribute Name
Initial receive window size being offered to the remote peer. This
attribute is copied in AVP 10 L2TP Receive Window Size. The
remote peer may send the specified number of control messages
before it must wait for an acknowledgment. The value with tag 0 is
used as default for the tunnels where the value is not specified. A pre-
configured value is used when attribute is omitted (configure
router/service vprn <service-id> l2tp receive-window-size).
Values outside the allowed Limits are treated as a setup failure.
Refers to a pre-configured L2TP tunnel accounting policy-name
(configure aaa l2tp-accounting-policy <policy-name>). L2TP
tunnel accounting (RFC 2867) can collect usage data based either on
L2TP tunnel and/or L2TP session and send these accounting data to a
RADIUS server. Different RADIUS attributes like [66] Tunnel-
Client-Endpoint, [67] Tunnel-Server-Endpoint, [68] Acct-Tunnel-
Connection, [82] Tunnel-Assignment-ID could be used to identify
the tunnel or session. The value with tag 0 is used as default for the
tunnels where the value is not specified. Pre-configured values are
used when attribute is omitted (configure router/service vprn
<service-id> l2tp radius-accounting-policy). Unreferenced policy-
names or policy-names longer than the allowed maximum are treated
as host setup failures.
This attribute is used on an L2TP LAC only. By default, a LAC does
not allow L2TP packet fragmentation by sending L2TP towards the
LNS with the Do not Fragment (DF) bit set to 1. This DF bit can be
set to 0 to allow downstream routers to fragment the L2TP packets.
The LAC itself will not fragment L2TP packets. Packets sent with
MTU bigger than the allowed size on the LAC egress port are
dropped.
Sets the L2TP LAC failover recovery-method to be used for this
tunnel: mcs or recovery-tunnel (RFC 4951). Pre-configured values
are used when attribute is omitted (configure router/service vprn
<service-id> l2tp failover recovery-method).
When tunnel recovery method is set to recovery-tunnel but LNS does
not support this capability, then the system automatically falls back
to mcs.
Values outside the limits are treated as a setup failure.
RADIUS Attributes Reference
Description
Page 65