Wired Intelligent Edge (Campus Switching and Routing)

How to Configure an IEEE 802.3ad Link Aggregation Group Between a 2920 Switch and 7010 Controller

MVP Expert
MVP Expert
Requirement:

 

A Link Aggregation Group (LAG) combines a number of physical ports together to make a single high-bandwidth data path, so as to implement the traffic load sharing among the member ports in the group and to enhance the connection reliability.

 



Solution:

 

In the following example, A LAG is configured between a 2920 switch and a 7010 controller.



Configuration:


********** Create the 2920 802.3ad link aggregation (Trunk) **********


2920(config)# trunk 3,4 trk1 lacp
2920(config)# show trunk

 Load Balancing Method:  L3-based (default)

  Port   | Name                             Type       | Group Type
  ------ + -------------------------------- ---------- + ----- --------
  3      |                                  100/1000T  | Trk1  LACP
  4      |                                  100/1000T  | Trk1  LACP

 

********** Create VLAN and Configure IP adddress **********


2920(config)# vlan 1000 ip address 10.10.10.1/24

2920# show ip

 Internet (IP) Service

  IP Routing : Enabled


  Default TTL     : 64
  Arp Age         : 20
  Domain Suffix   :
  DNS server      :

                       |                                            Proxy ARP
  VLAN                 | IP Config  IP Address      Subnet Mask     Std  Local
  -------------------- + ---------- --------------- --------------- ----------
  DEFAULT_VLAN         | DHCP/Bootp
  VLAN10               | Manual     10.0.10.1       255.255.255.0    No    No


********** Configure the trunk vlan **********


2920(config)# vlan 1000 tagged trk1​
2920(config)# show vlans ports trk1 detail

 Status and Counters - VLAN Information - for ports Trk1

  VLAN ID Name                 | Status     Voice Jumbo Mode
  ------- -------------------- + ---------- ----- ----- --------
  1       DEFAULT_VLAN         | Port-based No    No    Untagged
  1000    VLAN1000             | Port-based No    No    Tagged


2920(config)# show vlan 1000

 Status and Counters - VLAN Information - VLAN 1000

  VLAN ID : 1000
  Name : VLAN1000
  Status : Port-based
  Voice : No
  Jumbo : No
  Private VLAN : none
  Associated Primary VID : none
  Associated Secondary VIDs : none

  Port Information Mode     Unknown VLAN Status
  ---------------- -------- ------------ ----------
  Trk1             Tagged   Learn        Up


********** Create the 7010 802.3ad link aggregation **********


(Standalone-v6) (config) #interface gigabitethernet 0/0/0
(Standalone-v6) (config-if)#lacp group 1 mode active

(Standalone-v6) (config-if)#interface gigabitethernet 0/0/1
(Standalone-v6) (config-if)#lacp group 1 mode active


********** Verify LACP System IDs **********


2920# show lacp local

LACP Local Information.

System ID: 941882-a48880


(Standalone-v6) #show lacp 1 neighbor

Flags: S - Device is requesting slow LACPDUs
       F - Device is requesting fast LACPDUs
       A - Device is in Active mode P - Device is in Passive mode
LACP Neighbor Table
-------------------
Port      Flags  Pri  OperKey  State  Num  Dev Id
----      -----  ---  -------  -----  ---  ------
GE 0/0/0  SA     0    0xd2     0x3d   0x3  94:18:82:A4:88:80
GE 0/0/1  SA     0    0xd2     0x3d   0x4  94:18:82:A4:88:80


(Standalone-v6) #show lacp sys-id

32768,00:0B:86Smiley Very HappyD:11:40


2920# show lacp peer

LACP Peer Information.

System ID: 941882-a48880

  Local  Local                       Port      Oper    LACP     Tx
  Port   Trunk  System ID      Port  Priority  Key     Mode     Timer
  ------ ------ -------------- ----- --------- ------- -------- -----
  3      Trk1   000b86-dd1140  1     255       2       Active   Slow
  4      Trk1   000b86-dd1140  2     255       2       Active   Slow


********** Create/Configure VLAN and configure port channel **********


(Standalone-v6) (config) #vlan 1000
(Standalone-v6) (config) #interface vlan 1000
(Standalone-v6) (config-subif)#ip address 10.10.10.2 255.255.255.0

(Standalone-v6) (config) #interface port-channel 1
(Standalone-v6) (config-channel)#switchport mode trunk
(Standalone-v6) (config-channel)#switchport trunk allowed vlan 1000
(Standalone-v6) (config-channel)#trusted

(Standalone-v6) #show vlan status 1000

VLAN1000 is up line protocol is up
Hardware is CPU Interface, Interface address is 00:0B:86Smiley Very HappyD:11:40 (bia 00:0B:86Smiley Very HappyD:11:40)
Description: 802.1Q VLAN
Internet address is 10.10.10.2  255.255.255.0
IPv6 Router Advertisements are disabled
Routing interface is enable, Forwarding mode is enable
Directed broadcast is disabled, BCMC Optimization disabled ProxyARP disabled Suppress ARP enable
Encapsulation 802, loopback not set
MTU 1500 bytes
Last clearing of "show interface" counters 0 day 0 hr 26 min 43 sec
link status last changed 0 day 0 hr 2 min 0 sec
Associated Ports:,Pc1

(Standalone-v6) #show ip interface brief | exclude unassigned


Interface                   IP Address / IP Netmask        Admin   Protocol   VRRP-IP         (VRRP-Id)
vlan 1                    172.16.0.254 / 255.255.255.0     up      up         none            (none)
vlan 1000                   10.10.10.2 / 255.255.255.0     up      up         none            (none)
 



Verification

 

(Standalone-v6) #ping 10.10.10.1
Press 'q' to abort.
Sending 5, 92-byte ICMP Echos to 10.10.10.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0.777/0.8218/0.867 ms


(Standalone-v6) #show arp vlan 1000

Protocol        Address         Hardware Address        Interface
Internet        10.10.10.1      94:18:82:a4:88:80       vlan1000
 

Version history
Revision #:
1 of 1
Last update:
‎10-08-2018 07:07 AM
Updated by:
 
Search Airheads
cancel
Showing results for 
Search instead for 
Did you mean: