I am testing RB5009 for data transmission via mpls / vpls. I need to carry an ethernet frame of 1540B size.
So far I have used ROS 6.4x.x on HEX-S, on MTU = 2000B interfaces.
I verified v7.1.1 and v7.2.rc2 on RB5009.
My problem is that despite starting vpls, where PW L2MTU = 2000B, MTU = 2000B, Actual MTU automaticly is set to 1500B.
It is the same on the bridge to which this vpls is added.
Packets larger than 1500B are not transported through this vpls.
Where did I go wrong?
Code: Select all
# NAME MTU MAC-ADDRESS ARP SWITCH
0 R ether1 2200 DC:2C:6E:3B:F0:3B enabled switch1 << uplink
1 RS ether2 2000 DC:2C:6E:3B:F0:3C enabled switch1 << to client
/interface vlan
add interface=ether1 loop-protect=off mtu=2000 name=vlan100-mpls vlan-id=100
/mpls interface
add disabled=no input=yes interface=vlan100-mpls mpls-mtu=2000
/interface vpls
add arp=disabled bridge=bridge-vpls-td cisco-static-id=20991 disabled=no mac-address=02:70:35:2D:1D:44 mtu=2000 name=vpls-td peer=10.20.100.1 pw-l2mtu=2000 pw-type=raw-ethernet
> /interface/vpls/print detail
Flags: X - disabled, R - running; D - dynamic; B - bgp-signaled, C - cisco-bgp-signaled
0 R name="vpls-td" mtu=2000 mac-address=02:70:35:2D:1D:44 arp=disabled arp-timeout=auto peer=10.20.100.1 cisco-static-id=20991 pw-type=raw-ethernet pw-l2mtu=2000 bridge=bridge-vpls-td
> /interface/bridge/port print
Flags: D - DYNAMIC; H - HW-OFFLOAD
Columns: INTERFACE, BRIDGE, HW, PVID, PRIORITY, PATH-COST, INTERNAL-PATH-COST, HORIZON
# INTERFACE BRIDGE HW PVID PRIORITY PATH-COST INTERNAL-PATH-COST HORIZON
0 H ether2 bridge-vpls-td yes 1 0x80 10 10 none
1 D vpls-td bridge-vpls-td 1 0x80 10 10 none
/interface/bridge/print
Flags: X - disabled, R - running
0 R name="bridge-loopback1" mtu=2200 actual-mtu=2200 l2mtu=65535 arp=enabled arp-timeout=auto mac-address=F2:44:89:2C:32:47 protocol-mode=none fast-forward=yes igmp-snooping=no auto-mac=yes
ageing-time=5m vlan-filtering=no dhcp-snooping=no
1 R name="bridge-vpls-td" mtu=2000 actual-mtu=1500 l2mtu=2000 arp=disabled arp-timeout=auto mac-address=DC:2C:6E:3B:F0:3C protocol-mode=none fast-forward=yes igmp-snooping=no auto-mac=yes
ageing-time=5m vlan-filtering=no dhcp-snooping=no