################################################################################# # Version 1.0 $Revision: 1 $ # $Author: MHasegan $ # # Copyright © 1997 - 2006 by IXIA # All Rights Reserved. # # Revision Log: # 06-18-2008 Mircea Hasegan # ################################################################################# ################################################################################ # # # LEGAL NOTICE: # # ============== # # The following code and documentation (hereinafter "the script") is an # # example script for demonstration purposes only. # # The script is not a standard commercial product offered by Ixia and have # # been developed and is being provided for use only as indicated herein. The # # script [and all modifications, enhancements and updates thereto (whether # # made by Ixia and/or by the user and/or by a third party)] shall at all times # # remain the property of Ixia. # # # # Ixia does not warrant (i) that the functions contained in the script will # # meet the user's requirements or (ii) that the script will be without # # omissions or error-free. # # THE SCRIPT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, AND IXIA # # DISCLAIMS ALL WARRANTIES, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, # # INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR # # A PARTICULAR PURPOSE OR OF NON-INFRINGEMENT. # # THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SCRIPT IS WITH THE # # USER. # # IN NO EVENT SHALL IXIA BE LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING # # OUT OF THE USE OF, OR THE INABILITY TO USE THE SCRIPT OR ANY PART THEREOF, # # INCLUDING BUT NOT LIMITED TO ANY LOST PROFITS, LOST BUSINESS, LOST OR # # DAMAGED DATA OR SOFTWARE OR ANY INDIRECT, INCIDENTAL, PUNITIVE OR # # CONSEQUENTIAL DAMAGES, EVEN IF IXIA HAS BEEN ADVISED OF THE POSSIBILITY OF # # SUCH DAMAGES IN ADVANCE. # # Ixia will not be required to provide any software maintenance or support # # services of any kind (e.g., any error corrections) in connection with the # # script or any part thereof. The user acknowledges that although Ixia may # # from time to time and in its sole discretion provide maintenance or support # # services for the script, any such services are subject to the warranty and # # damages limitations set forth herein and will not obligate Ixia to provide # # any additional maintenance or support services. # # # ################################################################################ ################################################################################ # # # Description: # # This sample configures 10 L2TP tunnels with 500 sessions each between # # the Ixia port and DUT. Setup throttling is configured with 100 max # # outstanding sessions. If more then 100 sessions are queued an error is # # returned. # # Topology is the following: # # # # Access PPPoE L2TPoE # # Network -------- LAC ---------- LNS(DUT) # # (Ixia Port1) (Ixia Port1) (Cisco 7200) # # # # # # Module: # # The sample was tested on a LM1000STXS4 module. # # # # This sample works only with IxAccess. # # # ################################################################################ ################################################################################ # DUT configuration: # # # # username cisco password 0 cisco # aaa new-model # # aaa authentication login telnet enable # aaa authentication ppp default local # aaa session-id common # ip subnet-zero # no ip gratuitous-arps # no ip domain lookup # # ip multicast-routing # ip cef # # vpdn enable # vpdn ip udp ignore checksum # # vpdn-group LNS # accept-dialin # protocol l2tp # virtual-template 1 # local name lac # l2tp tunnel password 0 cisco # l2tp tunnel timeout no-session 1 # # bba-group pppoe global # virtual-template 1 # # interface Loopback1 # ip address 54.0.0.1 255.255.0.0 # # interface GigabitEthernet 0/2 # ip address 12.70.0.1 255.255.0.0 # no ip mroute-cache # duplex full # pppoe enable group global # no keepalive # no shutdown # # interface Virtual-Template1 # mtu 1458 # ip unnumbered Loopback1 # no logging event link-status # no snmp trap link-status # peer default ip address pool pool1 # no keepalive # ppp max-bad-auth 10 # ppp mtu adaptive # ppp authentication chap pap # ppp timeout retry 15 # ppp timeout authentication 15 # # ip local pool pool1 54.0.0.2 54.0.255.254 # # ip classless # no ip http server # # line vty 0 16 # exec-timeout 0 0 # login authentication telnet # end # # ################################################################################ package require Ixia set test_name [info script] set chassisIP sylvester set port_list [list 7/3] set session_count 2500 set tunnel_count 10 set sessions_per_tunnel [expr $session_count / $tunnel_count] set max_outstanding 100 ################################################################################ # Connect to the chassis, reset to factory defaults and take ownership ################################################################################ set connect_status [::ixia::connect \ -reset \ -device $chassisIP \ -port_list $port_list \ -username ixiaApiUser \ ] if {[keylget connect_status status] != $::SUCCESS} { return "FAIL - $test_name - [keylget connect_status log]" } foreach port $port_list { if {![catch {keylget connect_status port_handle.$chassisIP.$port} \ temp_port]} { lappend port_handle $temp_port } } set access_port [lindex $port_handle 0] ################################################################################ # Configure access interfaces in the test (one for each tunnel) ################################################################################ set port_handle_list "" set intf_ip_addr_list "" set gateway_list "" set speed_list "" set duplex_list "" set auto_list "" set phy_mode_list "" set netmask_list "" set src_mac_addr_list "" for {set i 2} {$i <= [expr $tunnel_count + 1]} {incr i} { lappend port_handle_list $access_port lappend intf_ip_addr_list 12.70.0.$i lappend gateway_list 12.70.0.1 lappend speed_list auto lappend duplex_list auto lappend phy_mode_list copper lappend auto_list 1 lappend netmask_list 255.255.255.0 lappend src_mac_addr_list 00ab.00ab.[format "%04x" $i] } set interface_status [::ixia::interface_config \ -port_handle $port_handle_list \ -mode config \ -speed $speed_list \ -duplex $duplex_list \ -phy_mode $phy_mode_list \ -autonegotiation $auto_list \ -intf_ip_addr $intf_ip_addr_list \ -gateway $gateway_list \ -netmask $netmask_list \ -src_mac_addr $src_mac_addr_list \ ] if {[keylget interface_status status] != $::SUCCESS} { return "FAIL - $test_name - [keylget interface_status log]" } ################################################################################ # Configure L2TP on access port ################################################################################ set l2tp_status [::ixia::l2tp_config \ -port_handle $access_port \ -mode lac \ -l2_encap ethernet_ii \ -num_tunnels $tunnel_count \ -l2tp_src_addr 12.70.0.2 \ -l2tp_dst_addr 12.70.0.1 \ -sessions_per_tunnel $sessions_per_tunnel \ -l2tp_src_count $tunnel_count \ -l2tp_src_step 0.0.0.1 \ -l2tp_dst_step 0.0.0.0 \ -udp_src_port 1701 \ -udp_dst_port 1701 \ -tunnel_id_start 1 \ -session_id_start 1 \ -tun_auth \ -hostname lac \ -secret cisco \ -tun_distribution next_tunnelfill_tunnel \ -auth_mode chap \ -username cisco \ -password cisco \ -attempt_rate $max_outstanding \ -disconnect_rate $max_outstanding \ -rws $max_outstanding \ -offset_bit \ -enable_setup_throttling 1 \ -max_outstanding $max_outstanding \ ] if {[keylget l2tp_status status] != $::SUCCESS} { return "FAIL - $test_name - [keylget l2tp_status log]" } set l2tp_handle [keylget l2tp_status handle] puts "L2TP handle is $l2tp_handle " ################################################################################ # Connect sessions ################################################################################ set control_status [::ixia::l2tp_control \ -handle $l2tp_handle \ -action connect ] if {[keylget control_status status] != $::SUCCESS} { return "FAIL - $test_name - [keylget control_status log]" } ################################################################################ # Get L2TP session/tunnel aggregate statistics ################################################################################ puts "Waiting for sessions and tunnels to establish ..." set l2tp_attempts 500 set l2tp_tunnels_up 0 while {($l2tp_tunnels_up < $session_count)} { after 1000 set l2tp_status [::ixia::l2tp_stats \ -handle $l2tp_handle \ -mode aggregate ] if {[keylget l2tp_status status] != $::SUCCESS} { return "FAIL - $test_name - [keylget l2tp_status log]" } set aggregate_stats [keylget l2tp_status aggregate] set l2tp_tunnels_up [keylget aggregate_stats sessions_up] set statList { idle connecting num_sessions connected connect_success sessions_up tunnels_up tunnels_neg } puts "\n" puts [format "%-41s" "[string repeat * 14] L2TPoE STATS [string repeat * 13]"] puts "" puts [format "%-30s %-10s" Statistic Value] puts [format "%-41s" [string repeat "-" 41]] foreach {key} $statList { if {![catch {keylget aggregate_stats $key}]} { puts [format "%-30s | %-10d" $key [keylget aggregate_stats $key]] } } if {[keylget aggregate_stats connecting] > 100} { return "FAIL - $test_name - Throttling max outstanding value 100 was exceeded. \ Out of range value is [keylget aggregate_stats connecting]" } incr l2tp_attempts -1 if {$l2tp_attempts == 0} { return "FAIL - $test_name - Failed to setup tunnels" } update idletasks } ############################################################################ # Disconnect sessions ############################################################################ puts "Disconnecting sessions ... " set control_status [::ixia::pppox_control \ -handle $l2tp_handle \ -action disconnect ] if {[keylget control_status status] != $::SUCCESS} { return "FAIL - $test_name - [keylget control_status log]" } set cleanup_status [::ixia::cleanup_session -port_handle $port_handle -reset] if {[keylget cleanup_status status] != $::SUCCESS} { return "FAIL - $test_name - [keylget cleanup_status log]" } return "SUCCESS - $test_name - [clock format [clock seconds]]"