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Full Discussion: How can I test link aggregation?
Operating Systems Solaris How can I test link aggregation? Post 303034020 by solaris_1977 on Tuesday 16th of April 2019 06:25:59 PM
Old 04-16-2019
How can I test link aggregation?
Hi,
I have Solaris-10 server and link aggregation is configured on this in below way
Code:
# dladm show-aggr
key: 1 (0x0001) policy: L4      address: 3c:d9:2b:ee:a8:a (auto)
           device       address                 speed           duplex  link    state
           bnx1         3c:d9:2b:ee:a8:a          1000  Mbps    full    up      attached
           igb2         f4:ce:46:a7:eb:92         1000  Mbps    full    up      attached
key: 2 (0x0002) policy: L4      address: 3c:d9:2b:ee:a8:8 (auto)
           device       address                 speed           duplex  link    state
           bnx0         3c:d9:2b:ee:a8:8          1000  Mbps    full    up      attached
           igb3         f4:ce:46:a7:eb:93         1000  Mbps    full    up      attached
# dladm show-link
bnx0            type: non-vlan  mtu: 1500       device: bnx0
bnx1            type: non-vlan  mtu: 1500       device: bnx1
bnx2            type: non-vlan  mtu: 1500       device: bnx2
bnx3            type: non-vlan  mtu: 1500       device: bnx3
igb0            type: non-vlan  mtu: 1500       device: igb0
igb1            type: non-vlan  mtu: 1500       device: igb1
igb2            type: non-vlan  mtu: 1500       device: igb2
igb3            type: non-vlan  mtu: 1500       device: igb3
aggr1           type: non-vlan  mtu: 1500       aggregation: key 1
aggr2           type: non-vlan  mtu: 1500       aggregation: key 2
aggr150002      type: vlan 150  mtu: 1500       aggregation: key 2
aggr50001       type: vlan 50   mtu: 1500       aggregation: key 1
aggr55001       type: vlan 55   mtu: 1500       aggregation: key 1
aggr60001       type: vlan 60   mtu: 1500       aggregation: key 1
aggr62001       type: vlan 62   mtu: 1500       aggregation: key 1
aggr64001       type: vlan 64   mtu: 1500       aggregation: key 1
aggr66001       type: vlan 66   mtu: 1500       aggregation: key 1
aggr81001       type: vlan 81   mtu: 1500       aggregation: key 1

# dladm show-dev
bnx0            link: up        speed: 1000  Mbps       duplex: full
bnx1            link: up        speed: 1000  Mbps       duplex: full
bnx2            link: unknown   speed: 0     Mbps       duplex: unknown
bnx3            link: unknown   speed: 0     Mbps       duplex: unknown
igb0            link: unknown   speed: 0     Mbps       duplex: half
igb1            link: unknown   speed: 0     Mbps       duplex: half
igb2            link: up        speed: 1000  Mbps       duplex: full
igb3            link: up        speed: 1000  Mbps       duplex: full
#

There will be switch replacement, so one by one, link will go down from one side. Before that activity, is there any way to check/test, if server will work fine, if one side goes down ? In same way, as used to check by if_mpadm -d in ipmp.

Thanks
 

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LEARN ABOUT CENTOS

struct_tid_ampdu_rx

STRUCT 
TID_AMPDU_RX(9)						     Internals						    STRUCT TID_AMPDU_RX(9)

NAME

       struct_tid_ampdu_rx - TID aggregation information (Rx).

SYNOPSIS

       struct tid_ampdu_rx {
	 struct rcu_head rcu_head;
	 spinlock_t reorder_lock;
	 struct sk_buff ** reorder_buf;
	 unsigned long * reorder_time;
	 struct timer_list session_timer;
	 struct timer_list reorder_timer;
	 unsigned long last_rx;
	 u16 head_seq_num;
	 u16 stored_mpdu_num;
	 u16 ssn;
	 u16 buf_size;
	 u16 timeout;
	 u8 dialog_token;
       };

MEMBERS

       rcu_head
	   RCU head used for freeing this struct

       reorder_lock
	   serializes access to reorder buffer, see below.

       reorder_buf
	   buffer to reorder incoming aggregated MPDUs

       reorder_time
	   jiffies when skb was added

       session_timer
	   check if peer keeps Tx-ing on the TID (by timeout value)

       reorder_timer
	   releases expired frames from the reorder buffer.

       last_rx
	   jiffies of last rx activity

       head_seq_num
	   head sequence number in reordering buffer.

       stored_mpdu_num
	   number of MPDUs in reordering buffer

       ssn
	   Starting Sequence Number expected to be aggregated.

       buf_size
	   buffer size for incoming A-MPDUs

       timeout
	   reset timer value (in TUs).

       dialog_token
	   dialog token for aggregation session

DESCRIPTION

       This structure's lifetime is managed by RCU, assignments to the array holding it must hold the aggregation mutex.

       The reorder_lock is used to protect the members of this struct, except for timeout, buf_size and dialog_token, which are constant across
       the lifetime of the struct (the dialog token being used only for debugging).

AUTHOR

       Johannes Berg <johannes@sipsolutions.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						    STRUCT TID_AMPDU_RX(9)
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