tag	line	file	source code
All_ports	54	net/bridge/br.c	Port_data       port_info[All_ports];      /* (4.5.5)   */
All_ports	55	net/bridge/br.c	Config_bpdu     config_bpdu[All_ports];
All_ports	56	net/bridge/br.c	Tcn_bpdu        tcn_bpdu[All_ports];
All_ports	60	net/bridge/br.c	Timer           message_age_timer[All_ports];    /* (4.5.6.1)   */
All_ports	61	net/bridge/br.c	Timer           forward_delay_timer[All_ports];    /* (4.5.6.2)   */
All_ports	62	net/bridge/br.c	Timer           hold_timer[All_ports];      /* (4.5.6.3)   */