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New Member

mac-address-table synchronize enable

Hi,

I like to enable the above feature for 6500 core switches.

Core Switch I am using SUP720, as per the details from cisco

Line card is supporting DFC & SUP card is supporting PFC, so this feature will help us to redice unicast flodding across LAN

But how to check my Line card is supporting DFC

Command/docuemnt/guideline pls share

Br/Subhojit

9 REPLIES
Hall of Fame Super Silver

mac-address-table synchronize enable

There are a couple of "show platform" commands depending on your software version.

See the document here.

New Member

mac-address-table synchronize enable

Hi,

Pls find the details of sample output

***** #sh interfaces gigabitEthernet 1/1 capabilities
GigabitEthernet1/1
  Model:                 WS-X6748-SFP
  Type:                  1000BaseSX
  Speed:                 1000
  Duplex:                full
  Trunk encap. type:     802.1Q,ISL
  Trunk mode:            on,off,desirable,nonegotiate
  Channel:               yes
  Broadcast suppression: percentage(0-100)
  Flowcontrol:           rx-(off,on,desired),tx-(off,on,desired)
  Membership:            static
  Fast Start:            yes
  QOS scheduling:        rx-(1q8t), tx-(1p3q8t)
  QOS queueing mode:     rx-(cos), tx-(cos)
  CoS rewrite:           yes
  ToS rewrite:           yes
  Inline power:          no
  Inline power policing: no
  SPAN:                  source/destination
  UDLD                   yes
  Link Debounce:         yes
  Link Debounce Time:    yes
  Ports-in-ASIC (Sub-port ASIC) : 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47 (1,3,5,7,9,11,13,15,17,19,21,23)
  Remote switch uplink:  no
  Dot1x:                 yes
  Port-Security:         yes

****1#sh module 
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
  1   48  CEF720 48 port 1000mb SFP              WS-X6748-SFP       SAL1547VSNN
  2   48  48-port 10/100 mb RJ45                 WS-X6148-RJ-45     SAL095186DX
  3   48  48-port 10/100 mb RJ45                 WS-X6148-RJ-45     SAL08155A14
  5    2  Supervisor Engine 720 (Active)         WS-SUP720-3B       SAL1547VJBF
  7   48  48-port 10/100 mb RJ45                 WS-X6148-RJ-45     SAL09232GR7
  8   48  48 port 10/100/1000mb EtherModule      WS-X6148-GE-TX     SAL0934810Y

Mod MAC addresses                       Hw    Fw           Sw           Status
--- ---------------------------------- ------ ------------ ------------ -------
  1  649e.f30a.3990 to 649e.f30a.39bf   2.4   12.2(18r)S1  12.2(33)SXI6 Ok
  2  0016.475d.ad50 to 0016.475d.ad7f   5.0   8.3(1)       12.2(33)SXI6 Ok
  3  000f.903a.ae2c to 000f.903a.ae5b   3.1   5.4(2)       12.2(33)SXI6 Ok
  5  e05f.b947.5b71 to e05f.b947.5b74   5.12  8.5(4)       12.2(33)SXI6 Ok
  7  0014.69c0.03d8 to 0014.69c0.0407   5.0   8.3(1)       12.2(33)SXI6 Ok
  8  0014.a9ba.3d28 to 0014.a9ba.3d57   7.0   7.2(1)       12.2(33)SXI6 Ok

Mod  Sub-Module                  Model              Serial       Hw     Status
---- --------------------------- ------------------ ----------- ------- -------
  1  Centralized Forwarding Card WS-F6700-CFC       SAL1546VBZK  4.1    Ok
  5  Policy Feature Card 3       WS-F6K-PFC3B       SAL1546V7F3  2.6    Ok
  5  MSFC3 Daughterboard         WS-SUP720          SAL1547VKQJ  5.1    Ok

Mod  Online Diag Status
---- -------------------
  1  Pass
  2  Pass
  3  Pass
  5  Pass
  7  Pass
  8  Pass

suggest further whether the same is DFC supported or not

Br/Subhojit

Hall of Fame Super Silver

mac-address-table synchronize enable

Please run:

show platform hardware pfc mode

New Member

mac-address-table synchronize enable

Hi,

show platform hardware pfc mode

PFC operating mode : PFC3B show platform hardware pfc mode
PFC operating mode : PFC3B

As per my knowledge, that is for SUP720 which is supporting PFC3B

But my concern is whether the Line card is DFC supported, so that I can go ahead to implement the same

br/Subhojit

New Member

mac-address-table synchronize enable

Hi,

we have this following line cards

WS-X6748-SFPWS-X6148-RJ-45WS-X6148-GE-TXWS-X6148A-GE-TXWS-X6408A-GBIC

Pls share whether all is having DFC3 Support or not as till now I found 3,4 having DFC3 from this link

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/product_data_sheet0900aecd8017376e.html

Pls share the docuemnt link

Hall of Fame Super Silver

mac-address-table synchronize enable

My understanding is that the 6148 and 6408 line cards are "classic" type line cards and thus not able to be upgraded with DFC3 module.

The 6748 is CEF720 type and may have DFC3.

New Member

mac-address-table synchronize enable

Hi,

Just found that in another cisco link that 6748 also supporting DFC3

In that case( as 2 other card as mentioned by you are classic line card), can we enable above command of "mac sync"

Will it work

Br/Subhojit

New Member

mac-address-table synchronize enable

Hi

Pls respond

Hall of Fame Super Silver

mac-address-table synchronize enable

It should work but only to synchronize the Supervisor PFC3 with the 6748 - and only if it has the DFC3 installed.

Unless you are seeing specific operational issues with the lack of this feature being enabled  would think it more trouble than benefit.

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