Not sure of the best way to do it on SRX, but I'd be looking for the equivalent of the Cisco "tcp adjust-mss" command rather than changing the MTU of the interface.
hashbrown: Not sure of the best way to do it on SRX, but I'd be looking for the equivalent of the Cisco "tcp adjust-mss" command rather than changing the MTU of the interface.
All, as you know the SRX has been quite difficult in the past to get working here in New Zealand.
Juniper first amended code to allow the PPPoE authentication to be transmitted on VLAN 10 but then caused issues as LCP for PPPoE neg control packets were sent from the SRX marked as '6' (802.1p).
11.4R4.7 and 11.4R4.8 'resolved' the issue with outbound packets being sent as BE '0'. Later releases broke this again. A new command (as yet undocumented in the release notes) was added to 12.1R5.5 which allows you to set the 802.1p markings for RE generated traffic: set class-of-service host-outbound-traffic ieee-802.1 default <802.1p setting> (either 'be' or '000' is valid)
Full VDSL working configuration is below (in copy & paste format): set interfaces pt-1/0/0 vlan-tagging set interfaces pt-1/0/0 vdsl-options vdsl-profile auto set interfaces pt-1/0/0 unit 0 encapsulation ppp-over-ether set interfaces pt-1/0/0 unit 0 vlan-id 10 set interfaces pp0 traceoptions flag all set interfaces pp0 no-per-unit-scheduler set interfaces pp0 unit 0 ppp-options pap local-name "REMOVED@snap.net.nz" set interfaces pp0 unit 0 ppp-options pap local-password "REMOVED" set interfaces pp0 unit 0 ppp-options pap passive set interfaces pp0 unit 0 pppoe-options underlying-interface pt-1/0/0.0 set interfaces pp0 unit 0 pppoe-options auto-reconnect 10 set interfaces pp0 unit 0 pppoe-options client set interfaces pp0 unit 0 family inet negotiate-address set class-of-service host-outbound-traffic ieee-802.1 default 000
For completeness I've included ADSL and UFB below: set interfaces at-1/0/0 mtu 1514 set interfaces at-1/0/0 encapsulation atm-pvc set interfaces at-1/0/0 atm-options vpi 0 set interfaces at-1/0/0 dsl-options operating-mode auto set interfaces at-1/0/0 unit 0 encapsulation atm-ppp-vc-mux set interfaces at-1/0/0 unit 0 vci 100 set interfaces at-1/0/0 unit 0 ppp-options pap local-name "snap.test3@snap.net.nz" set interfaces at-1/0/0 unit 0 ppp-options pap local-password "$9$d2saUk.PF69P5rvMLN-k.mfFntuOESrtu" set interfaces at-1/0/0 unit 0 ppp-options pap passive set interfaces at-1/0/0 unit 0 family inet mtu 1500 set interfaces at-1/0/0 unit 0 family inet primary set interfaces at-1/0/0 unit 0 family inet negotiate-address set interfaces pp0 no-per-unit-scheduler set interfaces pp0 unit 0 ppp-options pap local-name "REMOVED@snap.net.nz" set interfaces pp0 unit 0 ppp-options pap local-password "REMOVED" set interfaces pp0 unit 0 ppp-options pap passive set interfaces pp0 unit 0 pppoe-options underlying-interface at-1/0/0.0 set interfaces pp0 unit 0 pppoe-options auto-reconnect 10 set interfaces pp0 unit 0 pppoe-options client set interfaces pp0 unit 0 family inet negotiate-address set class-of-service host-outbound-traffic ieee-802.1 default 000
set interfaces fe-0/0/0 vlan-tagging set interfaces fe-0/0/0 unit 0 encapsulation ppp-over-ether set interfaces fe-0/0/0 unit 0 vlan-id 10 set interfaces pp0 no-per-unit-scheduler set interfaces pp0 unit 0 ppp-options pap local-name "REMOVED@snap.net.nz" set interfaces pp0 unit 0 ppp-options pap local-password "REMOVED" set interfaces pp0 unit 0 ppp-options pap passive set interfaces pp0 unit 0 pppoe-options underlying-interface fe-0/0/0.0 set interfaces pp0 unit 0 pppoe-options auto-reconnect 10 set interfaces pp0 unit 0 pppoe-options client set interfaces pp0 unit 0 family inet negotiate-address set class-of-service host-outbound-traffic ieee-802.1 default 000
--- JUNOS 12.1R5.5 built 2013-01-17 06:12:00 UTC admin@*> show version Hostname: * Model: srx110h-va JUNOS Software Release [12.1R5.5]
admin@*> show interfaces pp0 terse Interface Admin Link Proto Local Remote pp0 up up pp0.0 up up inet 1.2.3.5 --> 1.2.3.4
Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly
to your computer or smartphone by using a feed reader.