C9500-16X DAD link, interface module selection ?

[yuxiang zhou]

HI

Can i using GLE-TE for DAD link purpose directly between two C9500-16X ?

[balaji.bandi]

yes you can use, the document never mentioned any kind of media for Dual Active Detection. as long as they are reachable should be good and directly connected.

[yuxiang zhou]

HI balaji.bandi,

Thanks reply.

I find some info in "High Availability Configuration Guide"

In the chapter Configuring StackWise Virtual Fast Hello Dual-Active-Detection Link, step3 it says:

Configuring StackWise Virtual Fast Hello Dual-Active-Detection Link

Perform one the of the following depending on the switch that you are configuring.

If you are configuring a Cisco Catalyst 9500 Series Switch, use interface { TenGigabitEthernet | FortyGigabitEthernet } <interface>

If you are configuring a Cisco Catalyst 9500 Series High Performance Switch, use interface { HundredGigE | FortyGigabitEthernet | TwentyFiveGigE } <interface>

Example:

Device(config)#interface TenGigabitEthernet1/0/40

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/16-8/configuration_guide/ha/b_168_ha_9500_cg/b_168_ha_9500_cg_chapter_011.html

So, there is a possible not support GLC-TE ?

[balaji.bandi]

Agreed yor point, But if you have mGIG ports you can use GLC-T for 1 Gig, the port you have mentioned can not go less than 10Gig, (i have not seen eithernet GLC-T for 10G , there may be available in the market, not tested myself)

I will test DAD with 1GIG GLC-T with mGIG port on later week and post the results.

[yuxiang zhou]

Thank you for your support, hopefully get your good news soon!

[balaji.bandi]

here is test results :

SW1#show interfaces twentyFiveGigE 1/0/2
TwentyFiveGigE1/0/2 is up, line protocol is up (connected)
Hardware is Twenty Five Gigabit Ethernet, address is REMOIVED
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, Auto-speed, link type is auto, media type is 10/100/1000BaseTX SFP
input flow-control is on, output flow-control is off
Last input 00:05:33, output never, output hang never
Last clearing of "show interface" counters 00:33:58
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
19 packets input, 8199 bytes, 0 no buffer
Received 18 broadcasts (18 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 18 multicast, 0 pause input
0 input packets with dribble condition detected
8 packets output, 4144 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
11 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
SW1#show interfaces twentyFiveGigE 2/0/2
TwentyFiveGigE2/0/2 is up, line protocol is up (connected)
Hardware is Twenty Five Gigabit Ethernet, address is REMOIVED
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, Auto-speed, link type is auto, media type is 10/100/1000BaseTX SFP
input flow-control is on, output flow-control is off
Last input never, output 00:00:51, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
2 packets input, 634 bytes, 0 no buffer
Received 1 broadcasts (1 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 1 multicast, 0 pause input
0 input packets with dribble condition detected
26 packets output, 10031 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out

SW1#show stackwise-virtual dual-active-detection
Dual-Active-Detection Configuration:
-------------------------------------
Switch Dad port Status
------ ------------ ---------
1 TwentyFiveGigE1/0/2 up
2 TwentyFiveGigE2/0/2 up

SW1#show interfaces status | in connected

Twe1/0/2 connected 4094 a-full auto 10/100/1000BaseTX SFP
Twe2/0/2 connected 4094 a-full auto 10/100/1000BaseTX SFP

SW1#show run interface twentyFiveGigE 1/0/2
Building configuration...

Current configuration : 78 bytes
!
interface TwentyFiveGigE1/0/2
stackwise-virtual dual-active-detection
end

[yuxiang zhou]

HI balaji.bandi，

Thank you! Very appreciate your help !

[balaji.bandi · Accepted solution]

Glad it as usefull, if your problem resolved, marks as resolved,