EtherChannel Part 1
Apa itu EtherChannel?
Etherchannel adalah penggabungan beberapa link pada switch sehingga menjadi satu link logic.
Apa tujuan menggunakan Etherchannel?
Agar bisa menggabungkan bandwith dari beberapa link fisik serta menyediakan redundancy fisik.
Seperti apa gambaran Etherchannel itu?
Seperti gambar di bawah ini :
Jadi, meskipun 2 switch saling terhubung beberapa kabel, tidak akan ada issue looping, karena switch akan menganggap itu hanya sebagai satu link fisik.
Bagaimana cara mengkonfigurasikan nya?
Yuk, kita praktek pakai packet tracer seperti ini:
Konfigurasi di Switch KIRI :
KIRI#conf t
Enter configuration commands, one per line. End with CNTL/Z.
KIRI(config)#interface range fa0/1 - 3
KIRI(config-if-range)#channel-group 1 mode ?
active Enable LACP unconditionally
auto Enable PAgP only if a PAgP device is detected
desirable Enable PAgP unconditionally
on Enable Etherchannel only
passive Enable LACP only if a LACP device is detected
KIRI(config-if-range)#channel-group 1 mode active
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
KIRI(config-if-range)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up
KIRI#conf t
Enter configuration commands, one per line. End with CNTL/Z.
KIRI(config)#interface range fa0/1 - 3
KIRI(config-if-range)#channel-group 1 mode ?
active Enable LACP unconditionally
auto Enable PAgP only if a PAgP device is detected
desirable Enable PAgP unconditionally
on Enable Etherchannel only
passive Enable LACP only if a LACP device is detected
KIRI(config-if-range)#channel-group 1 mode active
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
KIRI(config-if-range)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up
Konfigurasi di Switch KANAN:
KANAN#conf t
Enter configuration commands, one per line. End with CNTL/Z.
KANAN(config)#interface range fa0/1 - 3
KANAN(config-if-range)#channel-group 1 mode ?
active Enable LACP unconditionally
auto Enable PAgP only if a PAgP device is detected
desirable Enable PAgP unconditionally
on Enable Etherchannel only
passive Enable LACP only if a LACP device is detected
KANAN(config-if-range)#channel-group 1 mode pass
KANAN(config-if-range)#channel-group 1 mode passive
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
KANAN(config-if-range)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up
%LINK-5-CHANGED: Interface Port-channel 1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to up
Setelah dua duanya dikonfigurasi, akan muncul interface Port-channel 1 dengan status up.
Jadi critanya terbentuklah satu virtual interface yang merupakan penggabungan 3 port sebelumnya dan dianggap 1 link dari switch KIR ke switch KIRI.
Bagaimana cara melakukan pengecekan ke Interface Port Channel yang baru saja kita konfigure?
> Show Eterchannel Summary
KIRI#show etherchannel summary
Flags: D - down P - in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
------+-------------+-----------+----------------------------------------------
1 Po1(SU) LACP Fa0/1(P) Fa0/2(P) Fa0/3(P)
> Show Eterchannel Port-channel
KIRI#show etherchannel port-channel
Channel-group listing:
----------------------
Group: 1
----------
Port-channels in the group:
---------------------------
Port-channel: Po1 (Primary Aggregator)
------------
Age of the Port-channel = 00d:00h:23m:27s
Logical slot/port = 2/1 Number of ports = 3
GC = 0x00000000 HotStandBy port = null
Port state = Port-channel
Protocol = LACP
Port Security = Disabled
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Fa0/1 Active 0
0 00 Fa0/3 Active 0
0 00 Fa0/2 Active 0
Time since last port bundled: 00d:00h:09m:58s Fa0/2
> Show interfaces Etherchannel
KIRI#show interfaces etherchannel
FastEthernet0/1:
Port state = 1
Channel group = 1 Mode = Active Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/1 SA down 32768 0x0 0x0 0x1
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/1 SA 32768 000A.4162.10D7 0x0 0x0 0x1
Age of the port in the current state: 00d:00h:11m:30s
FastEthernet0/2:
Port state = 1
Channel group = 1 Mode = Active Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/2 SA down 32768 0x0 0x0 0x2
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/2 SA 32768 000A.4162.10D7 0x0 0x0 0x2
Age of the port in the current state: 00d:00h:11m:30s
FastEthernet0/3:
Port state = 1
Channel group = 1 Mode = Active Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/3 SA down 32768 0x0 0x0 0x3
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/3 SA 32768 000A.4162.10D7 0x0 0x0 0x3
Age of the port in the current state: 00d:00h:11m:30s
----
Port-channel1:Port-channel1 (Primary aggregator)
Age of the Port-channel = 00d:00h:24m:59s
Logical slot/port = 2/1 Number of ports = 3
HotStandBy port = null
Port state =
Protocol = 1
Port Security = Disabled
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Fa0/1 Active 0
0 00 Fa0/3 Active 0
0 00 Fa0/2 Active 0
Time since last port bundled: 00d:00h:11m:30s Fa0/2
Syawal Nugrahanto
Enter configuration commands, one per line. End with CNTL/Z.
KANAN(config)#interface range fa0/1 - 3
KANAN(config-if-range)#channel-group 1 mode ?
active Enable LACP unconditionally
auto Enable PAgP only if a PAgP device is detected
desirable Enable PAgP unconditionally
on Enable Etherchannel only
passive Enable LACP only if a LACP device is detected
KANAN(config-if-range)#channel-group 1 mode pass
KANAN(config-if-range)#channel-group 1 mode passive
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up
KANAN(config-if-range)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up
%LINK-5-CHANGED: Interface Port-channel 1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel 1, changed state to up
Setelah dua duanya dikonfigurasi, akan muncul interface Port-channel 1 dengan status up.
Jadi critanya terbentuklah satu virtual interface yang merupakan penggabungan 3 port sebelumnya dan dianggap 1 link dari switch KIR ke switch KIRI.
Bagaimana cara melakukan pengecekan ke Interface Port Channel yang baru saja kita konfigure?
> Show Eterchannel Summary
KIRI#show etherchannel summary
Flags: D - down P - in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
------+-------------+-----------+----------------------------------------------
1 Po1(SU) LACP Fa0/1(P) Fa0/2(P) Fa0/3(P)
> Show Eterchannel Port-channel
KIRI#show etherchannel port-channel
Channel-group listing:
----------------------
Group: 1
----------
Port-channels in the group:
---------------------------
Port-channel: Po1 (Primary Aggregator)
------------
Age of the Port-channel = 00d:00h:23m:27s
Logical slot/port = 2/1 Number of ports = 3
GC = 0x00000000 HotStandBy port = null
Port state = Port-channel
Protocol = LACP
Port Security = Disabled
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Fa0/1 Active 0
0 00 Fa0/3 Active 0
0 00 Fa0/2 Active 0
Time since last port bundled: 00d:00h:09m:58s Fa0/2
> Show interfaces Etherchannel
KIRI#show interfaces etherchannel
FastEthernet0/1:
Port state = 1
Channel group = 1 Mode = Active Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/1 SA down 32768 0x0 0x0 0x1
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/1 SA 32768 000A.4162.10D7 0x0 0x0 0x1
Age of the port in the current state: 00d:00h:11m:30s
FastEthernet0/2:
Port state = 1
Channel group = 1 Mode = Active Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/2 SA down 32768 0x0 0x0 0x2
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/2 SA 32768 000A.4162.10D7 0x0 0x0 0x2
Age of the port in the current state: 00d:00h:11m:30s
FastEthernet0/3:
Port state = 1
Channel group = 1 Mode = Active Gcchange = -
Port-channel = Po1 GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Fa0/3 SA down 32768 0x0 0x0 0x3
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Fa0/3 SA 32768 000A.4162.10D7 0x0 0x0 0x3
Age of the port in the current state: 00d:00h:11m:30s
----
Port-channel1:Port-channel1 (Primary aggregator)
Age of the Port-channel = 00d:00h:24m:59s
Logical slot/port = 2/1 Number of ports = 3
HotStandBy port = null
Port state =
Protocol = 1
Port Security = Disabled
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Fa0/1 Active 0
0 00 Fa0/3 Active 0
0 00 Fa0/2 Active 0
Time since last port bundled: 00d:00h:11m:30s Fa0/2
Syawal Nugrahanto
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