<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def initialize_switch_endpoints(self):
 """Initialize endpoints for switch communication"""

        self._switches = {}
        self._port_group_info = {}
        self._validate_config()
        for s in cfg.CONF.ml2_arista.switch_info:
            switch_ip, switch_user, switch_pass = s.split(":")
            if switch_pass == "''":
                switch_pass = ''
            self._switches[switch_ip] = api.EAPIClient(
                switch_ip,
                switch_user,
                switch_pass,
                verify=False,
                timeout=cfg.CONF.ml2_arista.conn_timeout)
        self._check_dynamic_acl_support()