[j-nsp] MX204 Tunnel Services

Aaron1 aaron1 at gvtc.com
Thu Dec 27 20:12:56 EST 2018


I see you using ...

lt-0/0/0.100
lt-0/0/0.101

You might be hitting something I found a while back with lsys, same MAC address on both sides of tunnel link , issues with that 

If you are hitting up against that problem, Try either sitting MAC address on one side OR sitting a static arp entry on one of the sides... OR ... using a different tunnel pic interface for one of the sides ...

lt-0/0/0.100
lt-0/1/10.101



Aaron

> On Dec 27, 2018, at 4:40 PM, Fraser McGlinn <fraser at frizianz.com> wrote:
> 
> Further to this, and to clarify I do already have tunnel-services enabled and after configuring I get output packets on each unit, but no input packets. It seems like the PFE is just eating the packets.
> 
> fraser@> show configuration chassis | display set | match tunnel-services   
> set chassis fpc 0 pic 0 tunnel-services bandwidth 10g
> set chassis fpc 0 pic 1 tunnel-services bandwidth 1g
> 
> fraser@> show interfaces lt-0/0/0                                            
> Physical interface: lt-0/0/0, Enabled, Physical link is Up
>  Interface index: 159, SNMP ifIndex: 544
>  Type: Logical-tunnel, Link-level type: Logical-tunnel, MTU: Unlimited, Speed: 10000mbps
>  Device flags   : Present Running
>  Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000
>  Link flags     : None
>  Physical info  : 13
>  Current address: ee:38:73:e9:50:37, Hardware address: ee:38:73:e9:50:37
>  Last flapped   : 2018-12-19 03:07:15 AEDT (1w2d 06:20 ago)
>  Input rate     : 0 bps (0 pps)
>  Output rate    : 0 bps (0 pps)
> 
> fraser@> show interfaces lt-0/1/10   
> Physical interface: lt-0/1/10, Enabled, Physical link is Up
>  Interface index: 160, SNMP ifIndex: 598
>  Type: Logical-tunnel, Link-level type: Logical-tunnel, MTU: Unlimited, Speed: 1000mbps
>  Device flags   : Present Running
>  Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000
>  Link flags     : None
>  Physical info  : 13
>  Current address: ee:38:73:e9:58:27, Hardware address: ee:38:73:e9:58:27
>  Last flapped   : 2018-12-19 03:07:15 AEDT (1w2d 06:20 ago)
>  Input rate     : 0 bps (0 pps)
>  Output rate    : 0 bps (0 pps)
> 
> fraser@> show configuration | display set | match lt-0/0/0 
> set interfaces lt-0/0/0 unit 100 encapsulation ethernet
> set interfaces lt-0/0/0 unit 100 peer-unit 101
> set interfaces lt-0/0/0 unit 100 family inet address 100.64.0.1/30
> set interfaces lt-0/0/0 unit 101 encapsulation ethernet
> set interfaces lt-0/0/0 unit 101 peer-unit 100
> set interfaces lt-0/0/0 unit 101 family inet address 100.64.0.2/30
> set routing-instances TEST interface lt-0/0/0.101
> 
> fraser@> show interfaces lt-0/0/0                 
> Physical interface: lt-0/0/0, Enabled, Physical link is Up
>  Interface index: 159, SNMP ifIndex: 544
>  Type: Logical-tunnel, Link-level type: Logical-tunnel, MTU: Unlimited, Speed: 10000mbps
>  Device flags   : Present Running
>  Interface flags: Point-To-Point SNMP-Traps Internal: 0x4000
>  Link flags     : None
>  Physical info  : 13
>  Current address: ee:38:73:e9:50:37, Hardware address: ee:38:73:e9:50:37
>  Last flapped   : 2018-12-19 03:07:15 AEDT (1w2d 06:29 ago)
>  Input rate     : 0 bps (0 pps)
>  Output rate    : 0 bps (0 pps)
> 
>  Logical interface lt-0/0/0.100 (Index 328) (SNMP ifIndex 588)
>    Flags: Up SNMP-Traps 0x4000 Encapsulation: ENET2
>    MAC: ee:38:73:e9:50:37
>    Input packets : 0
>    Output packets: 21
>    Protocol inet, MTU: 1500
>    Max nh cache: 0, New hold nh limit: 0, Curr nh cnt: 0, Curr new hold cnt: 0, NH drop cnt: 0
>      Flags: Sendbcast-pkt-to-re
>      Addresses, Flags: Is-Preferred Is-Primary
>        Destination: 100.64.0.0/30, Local: 100.64.0.1, Broadcast: 100.64.0.3
> 
>  Logical interface lt-0/0/0.101 (Index 333) (SNMP ifIndex 590)
>    Flags: Up SNMP-Traps 0x4000 Encapsulation: ENET2
>    MAC: ee:38:73:e9:50:38
>    Input packets : 0
>    Output packets: 10
>    Protocol inet, MTU: 1500
>    Max nh cache: 0, New hold nh limit: 0, Curr nh cnt: 0, Curr new hold cnt: 0, NH drop cnt: 0
>      Flags: Sendbcast-pkt-to-re, Is-Primary
>      Addresses, Flags: Is-Default Is-Preferred Is-Primary
>        Destination: 100.64.0.0/30, Local: 100.64.0.2, Broadcast: 100.64.0.3
> 
>  Logical interface lt-0/0/0.32767 (Index 329) (SNMP ifIndex 589)
>    Flags: Up SNMP-Traps 0x4000 VLAN-Tag [ 0x0000.0 ]  Encapsulation: ENET2
>    Input packets : 0
>    Output packets: 0
> 
> fraser@> 
> 
>> On 28 Dec 2018, at 2:03 am, Tim Jackson <jackson.tim at gmail.com> wrote:
>> 
>> I've done LT interfaces on MX204 with multiple LSYS' to build some lab topologies without issue. This was back in beta and worked fine, haven't run it on newer code, but I do run GRE tunnels in 18.1R3 without issue.
>> 
>> --
>> Tim
>> 
>> 
>> 
>> On Wed, Dec 26, 2018, 5:43 PM Fraser McGlinn <fraser at frizianz.com <mailto:fraser at frizianz.com> wrote:
>> Hey Everyone,
>> 
>> Yet another post re MX204 ;)
>> 
>> Trying to get lt-x/x/x interfaces working on MX204 (18.3R1.9), thus far no luck. Interfaces are created and bandwidth set after enabling tunnel services on the PIC, however only output packets on the source interface increment. Input packets do not increment on the receiving unit, so seems to get lost in the nether.
>> 
>> Has anyone got LT interfaces working on MX204 and an example config?
>> 
>> Cheers,
>> Fraser
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