При использовании технологии EoMPLS между L3-коммутаторами WS-C6504-E и ME-3600X-24FS-M, наблюдаются потери пакетов в размере 10-15% при попытке достучатся по протоколу pppoe(пробовали и static IP) от рабочей станци до бордера.
На 6504 в сторону бордера настроен сабинтерфейс, а на 3600 xconnect забирает траффик с влан-интерфейса.
При этом MPLS-траффик в global table и vrf'е(L3VPN) ходит без потерь, те проблема именно в AToM'ом траффике.
Топология сети и конфиги представлены ниже.
Просьба помочь, если кто-нибудь сталкивался с подобной проблемой
Конфиги:
Cat 6504<br/>
<br/>
interface TenGigabitEthernet1/4<br/>
mtu 8000<br/>
ip address 10.76.0.106 255.255.255.252<br/>
logging event link-status<br/>
mpls mtu 1550<br/>
mpls label protocol ldp<br/>
mpls ip<br/>
<br/>
interface GigabitEthernet1/3.1111<br/>
encapsulation dot1Q 1111<br/>
xconnect 10.76.0.1 111 pw-class pppoe<br/>
<br/>
pseudowire-class pppoe<br/>
encapsulation mpls<br/>
<br/>
sh mpls l2transport vc 111 det<br/>
Local interface: Gi1/3.1111 up, line protocol up, Eth VLAN 1111 up<br/>
Interworking type is Ethernet<br/>
Destination address: 10.76.0.1, VC ID: 111, VC status: up<br/>
Output interface: Te1/4, imposed label stack {17}<br/>
Preferred path: not configured <br/>
Default path: active<br/>
Next hop: 10.76.0.105<br/>
Load Balance: none<br/>
Flow Label: Disabled<br/>
Create time: 05:13:22, last status change time: 05:13:21<br/>
Signaling protocol: LDP, peer 10.76.0.1:0 up<br/>
Targeted Hello: 10.76.0.2(LDP Id) -> 10.76.0.1, LDP is UP<br/>
Status TLV support (local/remote) : enabled/not supported<br/>
LDP route watch : enabled<br/>
Label/status state machine : established, LruRru<br/>
Last local dataplane status rcvd: No fault<br/>
Last local SSS circuit status rcvd: No fault<br/>
Last local SSS circuit status sent: No fault<br/>
Last local LDP TLV status sent: No fault<br/>
Last remote LDP TLV status rcvd: Not sent<br/>
Last remote LDP ADJ status rcvd: No fault<br/>
MPLS VC labels: local 22, remote 17 <br/>
Group ID: local 0, remote 0<br/>
MTU: local 1550, remote 1550<br/>
Remote interface description: <br/>
Sequencing: receive disabled, send disabled<br/>
Control Word: Off (configured: autosense)<br/>
VC statistics:<br/>
transit packet totals: receive 18896, send 22250<br/>
transit byte totals: receive 11066229, send 17872490<br/>
transit packet drops: receive 0, send 0<br/>
ME3600<br/>
<br/>
interface TenGigabitEthernet0/2<br/>
port-type nni<br/>
no switchport<br/>
mtu 8000<br/>
ip address 10.76.0.105 255.255.255.252<br/>
mpls mtu 1550<br/>
mpls label protocol ldp<br/>
mpls ip<br/>
<br/>
interface Vlan1111<br/>
mtu 1550<br/>
no ip address<br/>
xconnect 10.76.0.2 111 pw-class pppoe<br/>
end<br/>
<br/>
pseudowire-class pppoe<br/>
encapsulation mpls<br/>
<br/>
Local interface: Vl1111 up, line protocol up, Eth VLAN 1111 up<br/>
Interworking type is Ethernet<br/>
Destination address: 10.76.0.2, VC ID: 111, VC status: up<br/>
Output interface: Te0/2, imposed label stack {22}<br/>
Preferred path: not configured <br/>
Default path: active<br/>
Next hop: 10.76.0.106<br/>
Create time: 05:17:56, last status change time: 05:16:31<br/>
Signaling protocol: LDP, peer 10.76.0.2:0 up<br/>
Targeted Hello: 10.76.0.1(LDP Id) -> 10.76.0.2<br/>
Status TLV support (local/remote) : enabled/not supported<br/>
Label/status state machine : established, LruRru<br/>
Last local dataplane status rcvd: no fault<br/>
Last local SSS circuit status rcvd: no fault<br/>
Last local SSS circuit status sent: no fault<br/>
Last local LDP TLV status sent: no fault<br/>
Last remote LDP TLV status rcvd: not sent<br/>
MPLS VC labels: local 17, remote 22 <br/>
Group ID: local 0, remote 0<br/>
MTU: local 1550, remote 1550<br/>
Remote interface description: CN_10.76.0.2_Te1/3.1111 to BRAS<br/>
Sequencing: receive disabled, send disabled<br/>
VC statistics:<br/>
packet totals: receive 22648, send 20967<br/>
byte totals: receive 18187297, send 12609294<br/>
packet drops: receive 0, send 0<br/>
Тест
ping X.X.X.X rep 100<br/>
<br/>
Type escape sequence to abort.<br/>
!!!!!.!!!!!!!.!!!!!.!!!!!.!!!!!.!!!!!.!!!!!.!!!!!.!!!!!.!!!!!.!!!!!.!!<br/>
!!!.!!!!!.!!!!!.!!!!!.!!!!!.!!<br/>
Success rate is 84 percent (84/100), round-trip min/avg/max = 1/1/31 ms<br/>
<br/>
ping X.X.X.X rep 100 si 1500<br/>
<br/>
Type escape sequence to abort.<br/>
!!.!!.!!.!!.!!.!!.!!.!!.!!.!!!!!!.!!!.!!.!!.!!.!!.!!.!!.!!.!!.!!.!!.!!<br/>
.!!.!!.!!.!!.!!.!!.!!.!!.!!.!!<br/>
Success rate is 69 percent (69/100), round-trip min/avg/max = 1/3/33 ms<br/>
