1. LACP Configuration 구성도

1) LACP Configuration 구성도

  • Link Aggregation Configuration 및 State에 대한 내용은 'Link Aggregation Configuration' 글을 참고

 

2) 테스트 장비

  • Emulator : EVE-NG
  • OS : Juniper vMX 18.2R1.9

 

 

2. LACP Configuration

1) Link Aggregation Configuration

더보기 
< R1 : Chassis에서 지원하는 Link Aggregation 개수 설정 >
set chassis aggregated-devices ethernet device-count 1

< R1 : Physical Interface를 Link Aggregation Interface에 Binding >
set interfaces ge-0/0/1 ether-options 802.3ad ae0
set interfaces ge-0/0/2 ether-options 802.3ad ae0
set interfaces ge-0/0/3 ether-options 802.3ad ae0
set interfaces ge-0/0/4 ether-options 802.3ad ae0

< R1 : Aggregation Ethernet(ae) Interface 생성 및 Family 설정 >
set interfaces ae0 unit 0 family bridge interface-mode trunk
set interfaces ae0 unit 0 family bridge vlan-id-list 10

< R1 : VLAN 10 생성 및 IRB 설정 >
set interfaces irb unit 10 family inet address 1.1.2.1/24
set bridge-domains VLAN10 vlan-id 10
set bridge-domains VLAN10 routing-interface irb.10
더보기 
< R2 : Chassis에서 지원하는 Link Aggregation 개수 설정 >
set chassis aggregated-devices ethernet device-count 1

< R2 : Physical Interface를 Link Aggregation Interface에 Binding >
set interfaces ge-0/0/1 ether-options 802.3ad ae0
set interfaces ge-0/0/2 ether-options 802.3ad ae0
set interfaces ge-0/0/3 ether-options 802.3ad ae0
set interfaces ge-0/0/4 ether-options 802.3ad ae0

< R2 : Aggregation Ethernet(ae) Interface 생성 및 Family 설정 >
set interfaces ae0 unit 0 family bridge interface-mode trunk
set interfaces ae0 unit 0 family bridge vlan-id-list 10

< R2 : VLAN 10 생성 및 IRB 설정 >
set interfaces irb unit 10 family inet address 1.1.2.2/24
set bridge-domains VLAN10 vlan-id 10
set bridge-domains VLAN10 routing-interface irb.10

 

2) LACP Configuration

< R1 : LACP Active Mode 설정 >
set interfaces ae0 aggregated-ether-options lacp active
  • LACP Active Mode로 설정

 

< R2 : LACP Active Mode 설정 >
set interfaces ae0 aggregated-ether-options lacp passive
  • LACP Passive Mode로 설정

 

< vMX1 or vMX2 LACP System-ID 변경 >
set interfaces ae0 aggregated-ether-options lacp system-id xx:xx:xx:xx:xx:xx
  • EVE-NG vMX 18.2R1.9 장비는 모든 Chassis MAC Address가 동일하므로 LACP System-ID 값도 동일하게 구성되어 LACP 정상 동작 불가
  • 위와 같은 명령으로 System-ID를 변경해야 LACP 동작 가능

 

3) Link Aggregation State 확인

더보기 
root@R1> show interfaces terse | match ae0 
ge-0/0/1.0              up    up   aenet    --> ae0.0
ge-0/0/2.0              up    up   aenet    --> ae0.0
ge-0/0/3.0              up    up   aenet    --> ae0.0
ge-0/0/4.0              up    up   aenet    --> ae0.0
ae0                     up    up
ae0.0                   up    up   bridge
더보기 
root@R1> show interfaces ae0 extensive 
Physical interface: ae0, Enabled, Physical link is Up
  Interface index: 159, SNMP ifIndex: 540, Generation: 164
  Link-level type: Ethernet, MTU: 1514, Speed: 4Gbps, BPDU Error: None,
  MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled,
  Flow control: Disabled
  Pad to minimum frame size: Disabled
  Minimum links needed: 1, Minimum bandwidth needed: 1bps
  Device flags   : Present Running
  Interface flags: SNMP-Traps Internal: 0x4000
  Current address: 2c:6b:f5:4f:06:c3, Hardware address: 2c:6b:f5:4f:06:c3
  Last flapped   : 2024-10-24 15:45:43 UTC (00:00:47 ago)
  Statistics last cleared: Never
  Traffic statistics:
   Input  bytes  :                  558                    0 bps
   Output bytes  :               171886                 4144 bps
   Input  packets:                   10                    0 pps
   Output packets:                 1330                    3 pps
   IPv6 transit statistics:
   Input  bytes  :                    0
   Output bytes  :                    0
   Input  packets:                    0
   Output packets:                    0
  Dropped traffic statistics due to STP State:
   Input  bytes  :                    0 
   Output bytes  :                    0
   Input  packets:                    0
   Output packets:                    0
  MAC statistics:                      Receive         Transmit
    Broadcast packets                        0                0
    Multicast packets                        0                0
  Input errors:
    Errors: 0, Drops: 0, Framing errors: 0, Runts: 0, Giants: 0,
    Policed discards: 0, Resource errors: 0
  Output errors:
    Carrier transitions: 0, Errors: 0, Drops: 0, MTU errors: 0,
    Resource errors: 0
  Ingress queues: 8 supported, 4 in use
  Queue counters:       Queued packets  Transmitted packets      Dropped packets
    0                                0                    0                    0
    1                                0                    0                    0
    2                                0                    0                    0
    3                                0                    0                    0
  Egress queues: 8 supported, 4 in use
  Queue counters:       Queued packets  Transmitted packets      Dropped packets
    0                                0                    0                    0
    1                                0                    0                    0
    2                                0                    0                    0
    3                                0                    0                    0
  Queue number:         Mapped forwarding classes
    0                   best-effort
    1                   expedited-forwarding
    2                   assured-forwarding
    3                   network-control

  Logical interface ae0.0 (Index 337) (SNMP ifIndex 541) (Generation 157)
    Flags: Up SNMP-Traps 0x24024000 Encapsulation: Ethernet-Bridge
    Statistics        Packets        pps         Bytes          bps
    Bundle:
        Input :             0          0             0            0
        Output:             0          0             0            0
    Adaptive Statistics:
        Adaptive Adjusts:          0
        Adaptive Scans  :          0
        Adaptive Updates:          0
    Link:
      ge-0/0/1.0
        Input :             0          0             0            0
        Output:            10          0           460            0
      ge-0/0/2.0
        Input :             0          0             0            0
        Output:             0          0             0            0
      ge-0/0/3.0
        Input :             0          0             0            0
        Output:             0          0             0            0
      ge-0/0/4.0
        Input :             0          0             0            0
        Output:             0          0             0            0


    Aggregate member links: 4

    LACP info:        Role     System             System       Port     Port    Port 
                             priority         identifier   priority   number     key 
      ge-0/0/1.0     Actor        127  2c:6b:f5:4f:06:c0        127        1       1
      ge-0/0/1.0   Partner        127  2c:6b:f5:6e:9f:c0        127        1       1
      ge-0/0/2.0     Actor        127  2c:6b:f5:4f:06:c0        127        2       1
      ge-0/0/2.0   Partner        127  2c:6b:f5:6e:9f:c0        127        2       1
      ge-0/0/3.0     Actor        127  2c:6b:f5:4f:06:c0        127        3       1
      ge-0/0/3.0   Partner        127  2c:6b:f5:6e:9f:c0        127        3       1
      ge-0/0/4.0     Actor        127  2c:6b:f5:4f:06:c0        127        4       1
      ge-0/0/4.0   Partner        127  2c:6b:f5:6e:9f:c0        127        4       1
    LACP Statistics:       LACP Rx     LACP Tx   Unknown Rx   Illegal Rx 
      ge-0/0/1.0                 0           0            0            0
      ge-0/0/2.0                 0           0            0            0
      ge-0/0/3.0                 0           0            0            0
      ge-0/0/4.0                 0           0            0            0
    Marker Statistics:   Marker Rx     Resp Tx   Unknown Rx   Illegal Rx
      ge-0/0/1.0                 0           0            0            0
      ge-0/0/2.0                 0           0            0            0
      ge-0/0/3.0                 0           0            0            0
      ge-0/0/4.0                 0           0            0            0
    List-Type       Status
    Primary         Active
                Interfaces:
                ge-0/0/1        Up   
                ge-0/0/2        Up   
                ge-0/0/3        Up      
                ge-0/0/4        Up   
    List-Type       Status
    Backup          Down 
    Standby         Down 
    Protocol bridge, MTU: 1514, Generation: 175, Route table: 3,
    Mesh Group: __all_ces__
      Flags: Is-Primary, Trunk-Mode
더보기 
root@R2> show interfaces ae0     
Physical interface: ae0, Enabled, Physical link is Up
  Interface index: 159, SNMP ifIndex: 537
  Link-level type: Ethernet, MTU: 1514, Speed: 4Gbps, BPDU Error: None,
  MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled,
  Flow control: Disabled
  Pad to minimum frame size: Disabled
  Minimum links needed: 1, Minimum bandwidth needed: 1bps
  Device flags   : Present Running
  Interface flags: SNMP-Traps Internal: 0x4000
  Current address: 2c:6b:f5:6e:9f:c5, Hardware address: 2c:6b:f5:6e:9f:c5
  Last flapped   : 2024-10-24 15:45:45 UTC (00:01:30 ago)
  Input rate     : 0 bps (0 pps)
  Output rate    : 4112 bps (3 pps)

  Logical interface ae0.0 (Index 337) (SNMP ifIndex 542)
    Flags: Up SNMP-Traps 0x24024000 Encapsulation: Ethernet-Bridge
    Statistics        Packets        pps         Bytes          bps
    Bundle:
        Input :             0          0             0            0
        Output:             0          0             0            0
    Adaptive Statistics:
        Adaptive Adjusts:          0
        Adaptive Scans  :          0
        Adaptive Updates:          0    
    Protocol bridge, MTU: 1514
      Flags: Is-Primary, Trunk-Mode

 

4) LACP State 확인

root@R1> show lacp interfaces extensive 
Aggregated interface: ae0
    LACP state:       Role   Exp   Def  Dist  Col  Syn  Aggr  Timeout  Activity
      ge-0/0/1       Actor    No    No   Yes  Yes  Yes   Yes     Fast    Active
      ge-0/0/1     Partner    No    No   Yes  Yes  Yes   Yes     Fast   Passive
      ge-0/0/2       Actor    No    No   Yes  Yes  Yes   Yes     Fast    Active
      ge-0/0/2     Partner    No    No   Yes  Yes  Yes   Yes     Fast   Passive
      ge-0/0/3       Actor    No    No   Yes  Yes  Yes   Yes     Fast    Active
      ge-0/0/3     Partner    No    No   Yes  Yes  Yes   Yes     Fast   Passive
      ge-0/0/4       Actor    No    No   Yes  Yes  Yes   Yes     Fast    Active
      ge-0/0/4     Partner    No    No   Yes  Yes  Yes   Yes     Fast   Passive
    LACP protocol:        Receive State  Transmit State          Mux State 
      ge-0/0/1                  Current   Fast periodic Collecting distributing
      ge-0/0/2                  Current   Fast periodic Collecting distributing
      ge-0/0/3                  Current   Fast periodic Collecting distributing
      ge-0/0/4                  Current   Fast periodic Collecting distributing
    LACP info:        Role     System             System       Port     Port    Port 
                             priority         identifier   priority   number     key 
      ge-0/0/1       Actor        127  2c:6b:f5:4f:06:c0        127        1       1
      ge-0/0/1     Partner        127  2c:6b:f5:6e:9f:c0        127        1       1
      ge-0/0/2       Actor        127  2c:6b:f5:4f:06:c0        127        2       1
      ge-0/0/2     Partner        127  2c:6b:f5:6e:9f:c0        127        2       1
      ge-0/0/3       Actor        127  2c:6b:f5:4f:06:c0        127        3       1
      ge-0/0/3     Partner        127  2c:6b:f5:6e:9f:c0        127        3       1
      ge-0/0/4       Actor        127  2c:6b:f5:4f:06:c0        127        4       1
      ge-0/0/4     Partner        127  2c:6b:f5:6e:9f:c0        127        4       1
root@R2> show lacp interfaces              
Aggregated interface: ae0
    LACP state:       Role   Exp   Def  Dist  Col  Syn  Aggr  Timeout  Activity
      ge-0/0/1       Actor    No    No   Yes  Yes  Yes   Yes     Fast   Passive
      ge-0/0/1     Partner    No    No   Yes  Yes  Yes   Yes     Fast    Active
      ge-0/0/2       Actor    No    No   Yes  Yes  Yes   Yes     Fast   Passive
      ge-0/0/2     Partner    No    No   Yes  Yes  Yes   Yes     Fast    Active
      ge-0/0/3       Actor    No    No   Yes  Yes  Yes   Yes     Fast   Passive
      ge-0/0/3     Partner    No    No   Yes  Yes  Yes   Yes     Fast    Active
      ge-0/0/4       Actor    No    No   Yes  Yes  Yes   Yes     Fast   Passive
      ge-0/0/4     Partner    No    No   Yes  Yes  Yes   Yes     Fast    Active
    LACP protocol:        Receive State  Transmit State          Mux State 
      ge-0/0/1                  Current   Fast periodic Collecting distributing
      ge-0/0/2                  Current   Fast periodic Collecting distributing
      ge-0/0/3                  Current   Fast periodic Collecting distributing
      ge-0/0/4                  Current   Fast periodic Collecting distributing
  • 'show lacp interface' 명령어를 입력하면 비교적 간단하게 확인 가능
  • 'Receive State'가 Current이고, 'Mux State'가 Collecting & Distributing으로 확인되어 정상으로 판단

 

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