<div dir="ltr">Hi Renato,<div><br></div><div>in attachment the pcap capture. For this capture I have disabled all traffic-eng on FRR and removed from interface on Cisco.</div><div><br></div><div>regards</div><div><br></div><div>Alessio</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Il giorno mar 22 gen 2019 alle ore 15:37 Renato Westphal <<a href="mailto:renato@opensourcerouting.org">renato@opensourcerouting.org</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi Alessio,<br>
<br>
Interesting problem. Could you provide a pcap (showing TCP port 646<br>
only) so that I can analyze which LDP speaker is behaving badly?<br>
<br>
Your config looks fine to me. Using "mpls traffic-eng tunnels" or not<br>
on the Cisco side shouldn't matter since this is one of the commands<br>
used to enable RSVP-TE, which is a different protocol.<br>
<br>
Regards,<br>
Renato.<br>
<br>
On Tue, Jan 22, 2019 at 7:32 AM Alessio Leonarduzzi<br>
<<a href="mailto:alessio.leonarduzzi@gmail.com" target="_blank">alessio.leonarduzzi@gmail.com</a>> wrote:<br>
><br>
> Hi all,<br>
><br>
> I have a problem with MPLS and LDP neighbor between FRR 6.0.2. and Cisco IOS 12.2 advk9.<br>
><br>
> the log FRR side is:<br>
> [CUT]<br>
> 2019/01/22 01:03:12 LDP: discovery[recv]: iface enp2s0f0 lsr-id 2.2.2.2 transport-address 2.2.2.2 holdtime 15<br>
> 2019/01/22 01:03:12 LDP: discovery[send]: iface enp2s0f0 (ipv4) holdtime 180<br>
> 2019/01/22 01:03:12 LDP: nbr_fsm: event CONNECTION UP resulted in action SETUP NEIGHBOR CONNECTION and changing state for lsr-id 2.2.2.2 from PRESENT to INITIALIZED<br>
> 2019/01/22 01:03:12 LDP: msg[out]: initialization: lsr-id 2.2.2.2<br>
> 2019/01/22 01:03:12 LDP: nbr_fsm: event INIT SENT resulted in action NOTHING and changing state for lsr-id 2.2.2.2 from INITIALIZED to OPENSENT<br>
> 2019/01/22 01:03:12 LDP: discovery[recv]: iface enp2s0f0 lsr-id 2.2.2.2 transport-address 2.2.2.2 holdtime 15<br>
> 2019/01/22 01:03:12 LDP: msg[in]: initialization: lsr-id 2.2.2.2<br>
> 2019/01/22 01:03:12 LDP: recv_init: lsr-id 2.2.2.2 announced the Dynamic Capability Announcement capability<br>
> 2019/01/22 01:03:12 LDP: recv_init: lsr-id 2.2.2.2 announced the Typed Wildcard FEC capability<br>
> 2019/01/22 01:03:12 LDP: nbr_fsm: event INIT RECEIVED resulted in action SEND KEEPALIVE and changing state for lsr-id 2.2.2.2 from OPENSENT to OPENREC<br>
> 2019/01/22 01:03:12 LDP: nbr_fsm: event KEEPALIVE RECEIVED resulted in action START NEIGHBOR SESSION and changing state for lsr-id 2.2.2.2 from OPENREC to OPERATIONAL<br>
> ...<br>
> 2019/01/22 01:03:12 LDP: msg[in]: label mapping: lsr-id 2.2.2.2, fec <a href="http://1.1.1.1/32" rel="noreferrer" target="_blank">1.1.1.1/32</a>, label 250<br>
> 2019/01/22 01:03:12 LDP: msg[in]: notification: lsr-id 2.2.2.2, status Bad PDU Length (fatal error)<br>
> 2019/01/22 01:03:12 LDP: nbr_fsm: event SESSION CLOSE resulted in action CLOSE SESSION and changing state for lsr-id 2.2.2.2 from OPERATIONAL to PRESENT<br>
> 2019/01/22 01:03:12 LDP: session_close: closing session with lsr-id 2.2.2.2<br>
> 2019/01/22 01:03:12 LDP: zebra[out]: prefix <a href="http://10.226.135.0/30" rel="noreferrer" target="_blank">10.226.135.0/30</a> nexthop 10.224.1.21 ifindex 2 labels 497/166 (add)<br>
> [/CUT]<br>
><br>
> Cisco side:<br>
> [CUT]<br>
> Jan 22 00:51:51.049 CET: %LDP-5-NBRCHG: LDP Neighbor <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a> (2) is UP<br>
> Jan 22 00:51:51.053 CET: %LDP-4-PTCL: peer <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a>, bad PDU hdr<br>
> Jan 22 00:51:51.053 CET: PDU HDR:<br>
> Jan 22 00:51:51.053 CET: 0x00 0x01 0x0F 0xFE 0x5D 0xBD 0xBF 0xFC 0x00 0x00 0x00 0x00<br>
> Jan 22 00:51:51.053 CET: %LDP-5-NBRCHG: LDP Neighbor <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a> (2) is DOWN (Received bad message)<br>
> Jan 22 00:51:53.241 CET: %LDP-5-NBRCHG: LDP Neighbor <a href="http://1.1.1.12:0" rel="noreferrer" target="_blank">1.1.1.12:0</a> (7) is UP<br>
> Jan 22 00:51:53.245 CET: %LDP-4-PTCL: peer <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a>, bad PDU hdr<br>
> Jan 22 00:51:53.245 CET: PDU HDR:<br>
> Jan 22 00:51:53.245 CET: 0x00 0x01 0x0F 0xFE 0x5D 0xBD 0xBF 0xFC 0x00 0x00 0x00 0x00<br>
> Jan 22 00:51:53.245 CET: %LDP-5-NBRCHG: LDP Neighbor <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a> (7) is DOWN (Received bad message)<br>
> Jan 22 00:52:13.065 CET: %LDP-5-NBRCHG: LDP Neighbor <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a> (2) is UP<br>
> Jan 22 00:52:13.069 CET: %LDP-4-PTCL: peer <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a>, bad PDU hdr<br>
> Jan 22 00:52:13.069 CET: PDU HDR:<br>
> Jan 22 00:52:13.069 CET: 0x00 0x01 0x0F 0xFE 0x5D 0xBD 0xBF 0xFC 0x00 0x00 0x00 0x00<br>
> Jan 22 00:52:13.069 CET: %LDP-5-NBRCHG: LDP Neighbor <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a> (2) is DOWN (Received bad message)<br>
> Jan 22 00:52:15.953 CET: %LDP-5-NBRCHG: LDP Neighbor <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a> (7) is UP<br>
> Jan 22 00:52:15.957 CET: %LDP-4-PTCL: peer <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a>, bad PDU hdr<br>
> Jan 22 00:52:15.957 CET: PDU HDR:<br>
> Jan 22 00:52:15.957 CET: 0x00 0x01 0x0F 0xFE 0x5D 0xBD 0xBF 0xFC 0x00 0x00 0x00 0x00<br>
> Jan 22 00:52:15.957 CET: %LDP-5-NBRCHG: LDP Neighbor <a href="http://1.1.1.1:0" rel="noreferrer" target="_blank">1.1.1.1:0</a> (7) is DOWN (Received bad message)<br>
> [/CUT]<br>
><br>
><br>
> FRR configuration:<br>
><br>
> interface dummy0<br>
> ip address <a href="http://1.1.1.1/32" rel="noreferrer" target="_blank">1.1.1.1/32</a><br>
> !<br>
> interface enp2s0f0<br>
> description CORE-1<br>
> ip address <a href="http://10.224.1.22/30" rel="noreferrer" target="_blank">10.224.1.22/30</a><br>
> ip ospf network point-to-point<br>
> !<br>
> interface enp2s0f1<br>
> description CORE-2<br>
> ip address <a href="http://10.224.1.26/30" rel="noreferrer" target="_blank">10.224.1.26/30</a><br>
> ip ospf network point-to-point<br>
> !<br>
> mpls ldp<br>
> router-id 1.1.1.1<br>
> dual-stack cisco-interop<br>
> !<br>
> address-family ipv4<br>
> discovery hello holdtime 180<br>
> discovery hello interval 15<br>
> discovery transport-address 1.1.1.1<br>
> label local advertise explicit-null<br>
> !<br>
> interface enp2s0f0<br>
> !<br>
> interface enp2s0f1<br>
> !<br>
> exit-address-family<br>
> !<br>
> !<br>
><br>
> Cisco configuration:<br>
><br>
> mpls traffic-eng tunnels<br>
> mpls ip default-route<br>
> mpls label protocol ldp<br>
> interface Loopback0<br>
> ip address 2.2.2.2 255.255.255.255<br>
> !<br>
> interface TenGigabitEthernet1/1<br>
> description ASBR-FRR-TEST<br>
> mtu 1600<br>
> ip address 10.224.1.21 255.255.255.252<br>
> ip ospf network point-to-point<br>
> mpls traffic-eng tunnels<br>
> mpls ip<br>
> !<br>
><br>
> The OSPF is up and Loopback are in both routing tables. I try with/with-out "mpls traffic-eng tunnels" with same result. Timers/MTU are corrects.<br>
><br>
> The result is that the devices don't share the labels becouse neighbors are down<br>
><br>
> This is a bug? or wrong configuration?<br>
><br>
> regards<br>
><br>
> Alessio<br>
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<br>
<br>
<br>
-- <br>
Renato Westphal<br>
</blockquote></div>