Alcatel-Lucent 7750 Reference Manual page 207

Table 62: L2TP Tunnel Accounting (description) (Continued)
Attribute ID Attribute Name
68 Acct-Tunnel-
Connection
82 Tunnel-Assignment-ID
86 Acct-Tunnel-Packets-
Lost
87 NAS-Port-Id
90 Tunnel-Client-Auth-ID
91 Tunnel-Server-Auth-ID
7750 SR RADIUS Attributes Reference Guide
Indicates the identifier assigned to the tunnel session. For Tunnel start/stop it
is a concatenation, without delimiter, of LAC-tunnel-id (4bytes) and LNS-
tunnel-id (4 bytes)" were the LAC-tunnel-id maps to the hex value of L2TP
AVP 9 AssignedTunnelId from SCCRQ and LNS-tunnel-id maps to the hex
value L2TP AVP 9 AssignedTunnelId in SCCRP. Unknown tunnel-id's
(Tunnel Reject and Tunnel Link Reject) are reported as 0000 or ffff. For
Tunnel Link Start/Stop it maps to the integer Call Serial Number from ICRQ
L2TP AVP 15 Call Serial Number.
Indicates to the tunnel initiator the particular tunnel to which a session is to be
assigned. Some tunnelling protocols, such as PPTP and L2TP, allow for
sessions between the same two tunnel endpoints to be multiplexed over the
same tunnel and also for a given session to utilize its own dedicated tunnel.
Indicates the number of packets dropped and uses the ESM accounting
statistics for this. For Tunnel Link Stop it reports an aggregate of the dropped
input and output packets for this user over the course of this service being
provided. For Tunnel Stop this attribute represent an aggregate of input and
output dropped packets of all sessions that belong/belonged to this tunnel over
the course of this service being provided.
LAC : a text string identifying the physical access circuit (slot/mda/port/outer-
vlan.inner-vlan) of the user that requested the Authentication and/or
Accounting. The physical port on LAC can have an optional prefix-string
(max 8 chars) and suffix-string (max 64 chars) added (configure aaa l2tp-
accounting-policy <policy-name> include-radius-attribute nas-port-id
prefix-string <string> suffix(circuit-id|remote-id )). LNS: a text string
identifying the logical access circuit of the user that requested the
Authentication and/or Accounting. This logical access circuit is a fixed
concatenation (delimiter #) of routing instance, tunnel-server-endpoint,
tunnel-client-endpoint, local-tunnel-id, remote-tunnel-id, local-session-id,
remote-session-id and call sequence number.
Used during the authentication phase of tunnel establishment and copied by
the LAC in L2TP SCCRQ AVP 7 Host Name. Reported in L2TP Tunnel/Link
accounting when length is different from zero. The value with tag 0 is used as
default for the tunnels where the value is not specified. Pre-configured values
are used when the attribute is omitted (configure router/service vprn
<service-id> l2tp local-name). The Node system-name is copied in AVP
Host Name if this attribute is omitted and no local-name is configured.
Used during the authentication phase of tunnel establishment and reported in
L2TP Tunnel/Link accounting when length is different from zero. For
authentication the value of this attribute is compared with the value of AVP 7
Host Name from the received LNS SCCRP. Authentication from LAC point
of view passes if both attributes are the same. This authentication check is not
performed if the RADIUS attribute is omitted.
RADIUS Attributes Reference
Description
Page 207